meri's manga / #Naive MC(2)

SO SO SO SO FRUSTRATING!! How can a person be so naive?? How did he get so many dates like that... he’s just too vulnerable I felt so bad for the other guy watching all this happen.. It was just painful to watch. Also I’m still confused, are the two MCs siblings?? Why does he live in his house and say “mom” like they share a parent? I’m assuming by the tags they’re childhood friends though, would’ve been nice for more clarification unless I totally missed an important panel. Title and cover are both beautiful though LOL.

The love triangle was very frustrating but this was cute. Could the MC be any more naive though?