I see what Yandere is now... thanks...
the rest of the stuff is still unclear...
she's a crazy bitch... yeah... what am I supposed to do with her?..
Put her with other men?.. Why?..
There's skills in there... They increase some things, they decrease some things... So what kind of stats do I need and what do I need them for?..
It is more like a detective and puzzle game with fantasy element. Sanity: keep above 0 to keep your girl go full game over. Yandere is "power" stat need to avoid/overcome bad outcoming of each chapter. Nasty is the lewness stat of every single eroge.
Satiety is just how full or how much food you can eat. Food have each good/bad effect and also restore some sanity.
The whole story is that the protagonist is Yandere with some weird power to foresee bad outcome. Basically, there is some weird person/power is going around affecting the town. Most people is going around steal/fuck you from your "true love" boyfriend. There is also someone is trying steal your boyfriend. Your goal is either try to stay true to your love or surround to lust? and trying to find out who is pulling the string behind the back.
The truth ending require player to gather all the clue while avoid all the bad outcoming in all 6-7 chapter? However, this is just part one of the story. The game ended when you manage/fail to repel the girl that trying to steal your boyfriend at a final showdown. There is a lot unanswered question. This game feels refreshing compare to those billion other japanese eroge. The story is also different and less cliche than other jrpg. However, it is still eroge. It is just a well made game with a reason story and character developpment.