This manga is a circle of unrequited love involving 6 people (if you count the siscon as being one of the unrequited loves, although he does seem to want his sis to get married and start a family properly)
I like all of these characters so far, but I get the feeling that this is gonna FUCKING HURT.
I wouldnt call any of them the MC, although people seem to be calling the guy from the first chapter that. The pov switches constantly! They're all the Mc!
Basically, prepare to be wounded by at least some of them failing in their loves, because its literally impossible for them all to be happy as it is now (although some of the connections are a lot more easily broken than others)