Jesus Christ, this game feels like it was made by a Japanese YandereDev, it's a blatant and lazy rip off of NTR Legend.
It's too fucking grindy, more than it should be. A point in the snake game is equal to 1 yen, you need 100 to get the plank.
You can only get 2 intimacy points per day, and you need 20 to get the H scene. The first chance to get the intimacy point is pretty simple, talk to the chick in the corridor. The other is a castrated version of NTRL's grope minigame, in which you get invited to the chick's apartment to watch her stare lifelessly at the counter as the protagonist psychokinetically gropes her.
It's full of bugs and retarded inconsistencies. If you talk to her in the corridor, she literally calls you little brother (going by the MTL), but if you break into her apartment in the afternoon when she's naked and fingering herself in the livingroom, she suddenly suffers from amnesia and can't recall who you are.
Clicking on any button on the menu means that you click on whatever's under it for example: If you try to save in your room, clicking on one of the slots will also click on the bed beneath it, locking up the options and forcing you to return to the title screen.
If you try to play the snake game with more than 60 stress, the "You're Tired" screen will immediately pop up because playing it builds 40 stress. That screen forces you to return to the title screen.
TL;DR: Don't play this garbage.