Who is Best Nijigasaki Girl? And why is it most definitely Kasumi?

Yeah let's use whatever left over scraps we have from a dead game to piece together the most MID visual novel. (unless it somehow blows my mind, but the game better be free.)

yes or no?

Who's the MC? it's a man? because we know that men doesn't exist in LL world. Are we Yuu perhaps? Why has she lost her memory? Is this a chance for Ayumu to make her fall in love? Can I marry Ayumu? Can I unlock yandere Ayumu's route if I don't choose her?...

Thanks for kickstarting the death of SIFAS and throwing Nijigaku into complete disarray ♥♥♥♥ you Lanzhu Zhong. Everything was fine and dandy until you showed up.