
i dont get it why he's angry at his lil bro? this is getting confusing

Depression, guilt of having another 'perfect' family when he has his own, identity disorder, stress disorder, culture shock, cognitive overload, derealization. You need to understand that mc doesn't accept his situations at all, except for ml bcs he gives comfort to him. For mc the only thing he wants is to go back, he never saw all of those people as real person + we see by now that his 'brother' actions actually different from the novel's plot when all he wants is to go back. He wants to immediately go back to his real life but by having some disturbance of the original plot he thinks he will never go back to his world

im on chp 1 but wtf is a substitute? is it like for sex?

I've read a few of them. But most of the ones I've read have some sort of twist, like this one. The original premise is that the ML lead is supposed to realize that they've fallen in love with the substitute and that the original is actually not good. The original doesn't really want the MC but comes back because they want the MC to still be obsessed with them. It's an ego thing with the original.
creepy ass dad wtf. so is the director trans or are they forced to wear and kept the long hair cuz of that creepy old man? wonder if the picture in the closet is of them and the dead sister
It looks like their mom?? Or maybe their personal vet dr that the dad fell in love with? Please not a sister
i don't think she's their mom, the helper called her miss tsukino.. well akira look like her so i think they're definitely related
Oh wait u're right... Straight up disgusting old man omg
I guess, they're siblings and it died.