Mod Unity [Secret Flasher Manaka] Cosplay Loader Mod 2.2.1

[TetoraFetora]

Oh shit, how'd you figure it out? I've been stuck on the fact that the most important models (all of Manaka's stuff), are stuck in that file that I personally just can't crack into in StreamingAssets.

God its been a nightmare lmao. I haven't been able to access the base game clothing/body mesh data - during runtime its loaded into VRAM and inaccessible via the Unity APIs as far as I know. Haven't been able to crack the asset files either.

I've currently got no way to change the base game's assets but I figured we could just replace them with new assets.
My mod is basically just parsing the .glb models from disk, loading it into memory as a Unity Mesh, then when a cosplay equip call is made it replaces the targeted Skinned Mesh Renderer's mesh, material, and bone mapping with the modded one.

My system's pretty flawed though since I built it off a Selestia body (1.02) that differs slightly from the game's Selestia body. Bones and Blend Shapes (sliders) don't always line up with the game's and need manual mapping/correcting.

I want to mod her body, got any tips to share? I wanted to add a new slider in the customization menu for a new transformation.

This is doable and actually something I'm planning, including the customization menu integration.
If you've got any bodies, feel free to send them to me and I'll use them to develop the body swapping feature.
Also planning on adding an API so other mods can access my plugin's Mesh/Material/Texture loading methods.

 

[DigitalMan]

I've currently got no way to change the base game's assets but I figured we could just replace them with new assets.
My mod is basically just parsing the .glb models from disk, loading it into memory as a Unity Mesh, then when a cosplay equip call is made it replaces the targeted Skinned Mesh Renderer's mesh, material, and bone mapping with the modded one.

Well, shit... I've been trying my damnedest to get into the original asset file and modify the Manaka asset itself, since I wanted to be able to add onto the current transformations. If we can at least inject models in using the methods you've found, then I could theoretically recreate the Manaka body from basically scratch with the Selestia body, but that's so much more than I really want to do, and I'm afraid I won't quite be able to make it to a satisfying level, honestly... As for my own progress in cracking into the game, I'm up to the point that I can edit scripts and such, but I've had no luck beyond that. I got the bulk of the scripts and such out with AssetRipper, which has let me get the game into the Unity editor, but without getting into that asset file, I'm shit outta luck... I've been looking into all sorts of stuff, though I'm really just flailing around. I'm not too skilled at either modeling nor coding, though, so I'm at the stage where I just don't know what I don't know, and I don't even know where to really start. I'm gonna have to do some serious learning... At this rate, I might have to go to uni just to be able to mod a porn game, lol

 

[TetoraFetora]

Well, shit... I've been trying my damnedest to get into the original asset file and modify the Manaka asset itself, since I wanted to be able to add onto the current transformations. If we can at least inject models in using the methods you've found, then I could theoretically recreate the Manaka body from basically scratch with the Selestia body, but that's so much more than I really want to do, and I'm afraid I won't quite be able to make it to a satisfying level, honestly... As for my own progress in cracking into the game, I'm up to the point that I can edit scripts and such, but I've had no luck beyond that. I got the bulk of the scripts and such out with AssetRipper, which has let me get the game into the Unity editor, but without getting into that asset file, I'm shit outta luck... I've been looking into all sorts of stuff, though I'm really just flailing around. I'm not too skilled at either modeling nor coding, though, so I'm at the stage where I just don't know what I don't know, and I don't even know where to really start. I'm gonna have to do some serious learning... At this rate, I might have to go to uni just to be able to mod a porn game, lol

Real lmao. I’ve spent entirely too much time coding for a porn game mod that ~10 people will use. Code wise, if you really want to get into modding, look up the SFM websocket mod, the source is on GitGud I think and is a good starter on creating a plugin.

Mind sharing the scripts you extracted? It would help a lot with the features I’m planning if I could see exactly how certain game systems work.

 

[DigitalMan]

Real lmao. I’ve spent entirely too much time coding for a porn game mod that ~10 people will use. Code wise, if you really want to get into modding, look up the SFM websocket mod, the source is on GitGud I think and is a good starter on creating a plugin.

Mind sharing the scripts you extracted? It would help a lot with the features I’m planning if I could see exactly how certain game systems work.

Yeah, no prob. I'll send the essentials, the scripts and the prefabs, the rest I won't send cause there's just a bunch that isn't relevant, like audio files and so on. Sheablesoft is a real sly fox, all the stuff anybody would want to mod is hidden away, but we get all the terrain and NPC meshes, terrain meshes, textures, and everything else with the barest obfuscation lol. You can get all that stuff by using AssetRipper yourself if you ever get curious, I guess, here's a

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[DigitalMan]

Real lmao. I’ve spent entirely too much time coding for a porn game mod that ~10 people will use. Code wise, if you really want to get into modding, look up the SFM websocket mod, the source is on GitGud I think and is a good starter on creating a plugin.

Mind sharing the scripts you extracted? It would help a lot with the features I’m planning if I could see exactly how certain game systems work.

I almost forgot, there's an IL2CPP tool I used to get the Assembly-CSharp out as well, since the game does use IL2CPP for more of Sheable's trolling. I'll send that too. I've heard that it comes with some errors that make it incompatible for reintegrating into the game, but it should help you get a look with dnspy at some stuff. Once you get into it, the particularly interesting things are ExposureUnnoticed2.Master.Cosplay, which covers all the equipable clothing items, ExposureUnnoticed2.Master.Common, which seems to cover stuff like the jiggle physics, and player stats like stamina, exposure modifiers, etc., and finally the most interesting for me in particular is ExposureUnnoticed2.Object3D.Player.Scripts, under which is my holy grail, PlayerBodyCustomizeAdjuster, which is the function or wev that covers all the body customization.

EDIT: Why'd this one get marked as a virus...? Probably from the dlls, I guess. Just for posterity, these are just the dlls of the game itself, run through a decompiler cause this game was compiled with IL2CPP. It's harmless. It's only for looking at the code anyway, and if I were enough of a wizard to make a dll that can hack you just by you opening it in a text editor, I wouldn't be here tearing my hair out at trying to get into the assets file -_-

 

[TetoraFetora]

Big thanks DigitalMan, this will 100% help me integrate the custom clothing better into the game.

 

[CornyCollins]

Couldn't quite get it working, but your instructions were good enough to get me this far. Especially when I don't know anything about Blender or modeling.

 

[_aries]

View attachment 5334384

Overview:
This mod loads custom cosplay parts and replaces ones in game. This is currently just a replacer but I'm looking into modding in custom categories and equips.
I've included the 3 costumes above as examples for anyone who'd like to load their own outfits into Secret Flasher Manaka. Check the screenshots below for the game equips.​

Updated: 10/11/2025
Game/Creator: https://f95zone.to/threads/secret-flasher-manaka-v1-1-1-sheablesoft.256682/
Modder: me
Mod Version: 1.0.0
Game Version: 1.1.1
Language: English

Want to create your own custom outfits or load one you found?

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Please post any outfits you create here! Lmk if there are any mod suggestions or questions.

Known Issues:
- Certain equips like the Ninja top will still change your breast size, even if the replacement you're loading has the correct sliders baked in.
- Certain accessories like the nipple pasties aren't (yet) compatible.
- The halloween outfit clips with the nipples. The cosplay I imported didn't have nipple sliders built in.
- Certain equips have multiple meshes that don't properly disappear, like the Guard's whip.
- Sliders are a bit janky on certain equip pieces

Features:

Spoiler

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Planned Features:

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Installation:

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Change-Log:

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Download + Example Costumes:

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Plugin Only Download: 1.0.0

View attachment 5334419
View attachment 5334423
View attachment 5334429​

Sorry, where is "SFMCosplayLoaderMod.dll"? I've looked through everything in the quote and doc file, but it's not there. What am I missing?

 

[untitledwrrong]

Couldn't quite get it working, but your instructions were good enough to get me this far. Especially when I don't know anything about Blender or modeling.
View attachment 5338191

Don't use that shoe model because it doesn't fit the bones and could glitch out

 

[untitledwrrong]

I found an issue where the cosplay cannot being changed on
- general (upperbody on bra and pants)
- adult sweater
- pants in suitB (you can but there still visible model belt from previous)
- down jacket set

 

[untitledwrrong]

fix the cloth especially with the pants and added new loose shirts
I will add another cosplay like seifuku and bathtowel later...


the cosplay replace the panties from suitA and top&jacket from suitB

 

[bergi]

Is there somewhere that we can double check the data in the naming table? I've been testing different slots for heels and some work while others don't with the only thing changing being the categoryName and cosplayName in the descriptor file. The GeneralLeg category as a whole is refusing the swap the mesh. I tested 4 or 5 and none worked but I can swap the shoes in the School Uniform B set no problem. The source of the problem could be entirely different though. It's just where I was at troubleshooting.

Big thanks for streamlining this modding process.

 

[untitledwrrong]

Is there somewhere that we can double check the data in the naming table? I've been testing different slots for heels and some work while others don't with the only thing changing being the categoryName and cosplayName in the descriptor file. The GeneralLeg category as a whole is refusing the swap the mesh. I tested 4 or 5 and none worked but I can swap the shoes in the School Uniform B set no problem. The source of the problem could be entirely different though. It's just where I was at troubleshooting.

Big thanks for streamlining this modding process.

I did find the general category refusing any model changing, the down jacket seem same and sweater from adult

 

[TetoraFetora]

Couldn't quite get it working, but your instructions were good enough to get me this far. Especially when I don't know anything about Blender or modeling.

Nice! Is the harness supposed to be pink? If not, might be your material definition isn't hooked up properly or the texture isn't being loaded.
The feet being invisible is because certain base-game slots hide portions of the body mesh - you can mount the sandals to a completely different slot or find a foot slot (without heels) that still renders the feet.

Is there somewhere that we can double check the data in the naming table? I've been testing different slots for heels and some work while others don't with the only thing changing being the categoryName and cosplayName in the descriptor file. The GeneralLeg category as a whole is refusing the swap the mesh. I tested 4 or 5 and none worked but I can swap the shoes in the School Uniform B set no problem. The source of the problem could be entirely different though. It's just where I was at troubleshooting.

Big thanks for streamlining this modding process.

I used the UnityExplorer plugin and scraped a bunch of GameObject names from the CosplayController components - Admittedly I didn't test every single slot item but the General categories are a bit janky for sure. Wont be forever though, hang tight for future updates.

I found an issue where the cosplay cannot being changed on
- general (upperbody on bra and pants)
- adult sweater
- pants in suitB (you can but there still visible model belt from previous)
- down jacket set

I'll test tonight

 

[TetoraFetora]

Fucking hell. I was high as fuck when I built out the SFM Cosplay Mapping spreadsheet.
I manually typed out the General categories and entered "GeneralUpperBody" but it should have been misspelled as "GenaralUpperBody". Same goes for "GenaralLeg" and "GenaralGenital". Thanks Sheable.
Its fixed in the mapping table now so you should be able to use most of these slots now - my bad.

The lace bra is a super buggy and flickery but you can actually mount custom bras on non-bra slots. The loader's not picky about what you mount to where.

I didn't have any issues loading the Adult Sweater parts so double check your JSON untitledwrrong just in case, plz. I re-copied the values though just in case.

The down jacket set also mounts fine for me but it hides portions of the body - Still looking into preventing this.

I'm working on fixing some of the minor things like whips/belts/pieces of replaced clothing sticking around. And I might have a potential fix for the body parts being hidden. I think shaeble's shrinking the bone scales but we'll see. This is the Down Jacket Knit Sweater slot.

 

[bergi]

Those misspellings in the game files are so soulful. My favorite I fell for while making a mission is ahegao double piece. Anyway, here's the heels I was testing with. Sadly, they are a bit oversized since there weren't any heels in the game that rise Manaka high enough while also hiding the feet so I had to sculpt them slightly bigger so that the feet don't clip through. I replaced the stiletto heels under general (feet) tab.

I'm not sure if I'm misunderstanding you but the way that the dev shrinks the body parts to hide clipping is by using the shrink blendshapes and not bone scaling as far as I know. Also did you have this problem with tops? I was getting spammed by an error message when I put on a bra that I custom fit and made blendshape for myself. The bra works fine including the blendshapes but the error message spam is annoying and might lag. I put the log in the screenshot with the heels for preview.

edit: If someone else get this error, it was because I forgot the Chikubi blendshape. I needed to make 3 blendshape: Breast_big, Breast_small and Chikubi.

 

[TetoraFetora]

Also did you have this problem with tops? I was getting spammed by an error message when I put on a bra that I custom fit and made blendshape for myself. The bra works fine including the blendshapes but the error message spam is annoying and might lag. I put the log in the screenshot with the heels for preview.

Thanks for the logs, its probably a blend shape mismatch between your new model and the one you're replacing. The mod's supposed to copy over the blend shapes from the original SMR and then append the new model's blend shapes at the end but something isn't working. For a short term fix, you could change your JSON cosplayName to point to a simpler base game part and see if it still floods the logs.


I'm making some progress figuring out injecting new cosplay parts into existing categories. If I can get this working well enough we'll be able to add new cosplay parts to existing categories without conflicts from the base game cosplays.

 

[CornyCollins]

Don't use that shoe model because it doesn't fit the bones and could glitch out

Nice! Is the harness supposed to be pink? If not, might be your material definition isn't hooked up properly or the texture isn't being loaded.
The feet being invisible is because certain base-game slots hide portions of the body mesh - you can mount the sandals to a completely different slot or find a foot slot (without heels) that still renders the feet.

Thanks guys. I got it working. Oh yeah the harness and everything else was pink. The shoes replaces the Guard Cap.

View attachment slidesshoes.zip

 

[_aries]

Can anyone upload the SFMCosplayLoaderMod.dll ?. I'm stuck to finding that file, but still cannot. T_T

 

[TetoraFetora]

Can anyone upload the SFMCosplayLoaderMod.dll ?. I'm stuck to finding that file, but still cannot. T_T

They’re at the bottom of the main post - here’s just the DLL
I also included Mega and Google drive links for a download with the example outfits.