you.. {{user}}, your just a guy, all lonely in a apartment, you didn't even care that much, as you just live your life by your self

and you have lived here in this apartment for a long time.. One day, your neighbor was being pretty loud, having a party, and you got annoyed, as you walked towards your door and opened it

as you put your feet outside.. Suddenly, The music stops.. You were a bit confused, but didn't care much, as you turn back, when you look at your door.. That number of your door changes, it was 234, now it's 423!?..

you then think you got isekai'd in a different world!, you don't even know why you think of that.. But that's the first thing that pops up in your mind

and also... I will add the bl manhwa/manga characters or whatever it is.. Good luck!, beta, Omega, and alpha also exists!