Happy to say that I've finished this game with all 3 ending tho.
1st ED = you happily marry to the store clerk.
2nd ED = you live alone because you rape her in the public toilet without mask.
3rd ED = you let yourself overstress and publicly rape her in train and get arrested.
Walkthrough
This is overview of what I've played. I do recommend cheat by using Cheat Engine. I always use speedhack to get something done.
Start Day 1
Wake up -> Train -> alley behind store
Smoke if you have -> Check poster -> jerk off (max speed reduce more stress) -> pick up garbage
go into the store -> talk to the clerk girl
garbage bin in front of store -> do hard work (-2 SP) -> focus on green junk (gold if present)
Repeat day until you have jerk off 3 times. The poster will then be ripped out and you can look into the vent and jerk off the the girl ass in secret.
now grind money until you have 2000 (try not to cheat here)
After you got that 2000 you can just use CE to cheat money to whatever you want. You may want to grind or cheat money until the shopping district is opened (the right side of your home)
After the girl is in train by the evening, go to her and molest her. After you max her pleasure from molesting, the game tell you to follow her to the park (in front of your home). Then, initiate the mini game. This will always end in fail no matter what. The MC will think that you need to get her to cum to get her guard down.
Repeat day until you get her to 30 sensitivity. While repeating, try reduce your stress to 0 by buying Fried Chicken, Instant noodle, smoking cigarette. After you get her to 30 sensitivity, you can make her cum by filling up the pleasure gauge first and finger her until she gets to climax.
After she has cum, follow her to the park and initiate the tailing mini game WARNING: SAVE BEFORE INITIATE THE MINI GAME SINCE THIS MINI GAME IS SO FUCKED UP. Reload until you finally succeed at tailing her to the public toilet. Go to the bush on left side of the woman door then go into the toilet. Get inside the stall near hers. This will initiate blackmailing photoshoot. Click recording button first then look at the side of your monitor. It will say something like Breast (x2), this mean that you have to take the picture of said thing in x2 zoom (use mousewheel to zoom). After the photoshoot, the MC want to go into action but get cockblock by random passerby. Go hide in the same stall and initiate jerking off minigame which will always end up in failure.
Next day, go to the back alley again and look in the vent, this give the MC the idea of warning sign. Pick up trash -> go into the store -> ask the girl about warning sign.
Right about now, you should have enough money for the game to open the shopping section. Go to right most place (of your home) and keep gacha-ing until you have about 12,000 GB (this can be cheated too). Once you have enough GB, walk to the elevator beside the gacha vending machine and buy Wrestler Mask + Antique Phone A.
Next day, go to the back alley -> pick up trash -> go into the store -> buy warning sign -> do your job
on the way back, in the train, molest her until she has cum. Follow her through the park (do not for get to save before initiate the tailing minigame). Check the bush -> go into the toilet. The MC will wear the Wrestler Mask, put the warning sign in front of the toilet. Now go rape her. IF YOU GET INSIDE WITH ONLY WARNING SIGN (WITHOUT MASK) THE GAME WILL END.
The sex mini game will be initiated. You have to click the "PINK HEART" to fill up the gauge. After the sex you will now blackmailing her and give her the Antique Phone for contract.
Now repeat the day (working and wanking stuff but keep your stamina at 4). In the evening, go to the park and call her (near bench). Now explore the park for the spot to fk her. IIRC, the first spot is the toilet you rape her. Keep doing this (this takes many days) and get all the scene you can. When you have reach the certain point, the clothes will be available at the GB store (elevator).
After a while the Hotel Ticket and Lace Erotic Outfit will be available, buy them then -> go to the hotel (Deep blue door near the vending machine in the shopping district) -> hotel (do not forget to pick the 2 items in the hotel) -> call her -> fk her in the bathroom
Next day, go to the back alley and look into the vent -> go buy new warning sign -> jerk off with the clear view (back alley vent) in the next day.
Now the message should pop up with "Unexpected Encounter?" -> in the evening, go to the fountain near public toilet -> Initiate the minigame. WARNING: SAVE BEFORE INITIATE THE MINI GAME SINCE THIS MINI GAME IS SO FUCKED UP. you will get cockblock again by the bunny girl -> go to the elevator and buy Maid Outfit + HeadCAM.
The next day, in the evening, go to hotel -> call her -> fk her on the bed -> go to the bunny girl -> she will now not block us anymore.
the next day, tail her from the park fountain again -> you will now know that the girl is a rookie idol. -> You must now buy the sexy cat outfit from the elevator
the next day, call her from the park and use the sex spot that using the sexy cat outfit.
the next day, go to the store (after pick up trash) -> you're mad that she has not broken yet -> the next day, go to the back alley -> call her -> fk her at any spot (try to get all the spot and get the sensitivity to 100). While repeat this, go buy the vibrator from the elevator for the last sex spot in the convenience store.
Buy Panda Mask + Antique Phone B from the elevator -> go train (same building as hotel) until you reach LV3 -> beat thug -> you will now unlock repeatable beat up with thug -> talk to them again and choose dialogue to trick them to attack the girl.
Next day, go to the back alley -> call the thug -> choose to step in or not (really doesn't matter, if you choose not to, you will get another scene with thug having their way with her. If you're into NTR, go for it) -> You help her -> 2 years skip -> you marry her -> she becomes star actress -> END