For the future generations:
There are 5 endings, by getting either of them the game doesn't stop, you'll continue as if it didn't happen, you even can go get them once again if you want.
True ending(Normal END) - just beat the game, complete all the tasks of ministers, and then talk to the king. After the ending, you'll be able to expose yourself at noon(there are a few extra spots for exposure).
First bad ending (Bandit Defeat END) - lose to "Plague" the last boss of bandits. Doesn't require any level of [Nasty].
Second bad ending (Back Alley Fall END) - after getting the quest to investigate a specific inn in the back alley, you'd need to reach 40+[Nasty] so you'd be offered to work there. After 10th day of prostituting yourself, you'll get a special dialogue about you being found out as someone from the castle. The next time you'll start working there you'll be drugged and will become a thoughtless public slut.
Third {bad ending?} (Soldier END) -
!Starting from here it's just an assumption. Actually the easiest to get, so by some accident I've figured out that we actually have a safe period of 15 days in the game. So to get this ending you need to reach 0[Skill], 0[Fame], and 100[Nasty], after going to bed a dialogue will pop up about soldiers speaking with the king about FMC, if you not gonna change said stats then the next time you got to sleep you'll get the bad? end about being demoted and becoming the soldier's toy.
Fourth bad ending(NTR END) - ??? It looks like for this one you need to be in relation with some Alan dude, but I got 0 idea about who that is, also you probably need to work in the brothel, so 40+[Nasty] at least. It actually feels like this route was cut out of our version, reading the fact that the old translator skipped the NTR route... I might be right about it...
Masturbation Toys:
1.Rotor can be found in the top-right building in {Desolate city}
2.Vibrator can be found in a brothel, so get yourself 40+[Nasty], open the quest, talk with the guard inside, and take it from the cupboard.
Depending on which item you use after exposure you'll get different scenes if spotted.
{Masturbation When Found}from recollection:
That is the thing I was cracking my head about.
Basically, after you Masturbate in your room, you can get a sex scene with soldiers.
There are 4 scenes, Soldier A, Soldier B, 3 Piece, and 5 Piece.
I still don't know how to get a 5some...
In the castle there are 2 guards, one is near the statue on the top floor, and the other one is in the infirmary(top-right guy), when you speak with them, dialogue pops up. You tell them to have a talk when they have free time and the free time

would of course be right after you finish your masturbation. You can talk with both of them for a 3some.
{Smoke bombs}
You can use SBs not only to escape but also to "kill" bosses...
It won't give you exp or loot, but why not?
P.S. won't work with "Plague" boss
{Recollection room}
It exists. Idk how to open it. I guess you need to collect all endings?
There's a full save in this thread, its recollection is opened.