Somerandomassnickname's manga / #hinako(7)

1-2. Naive & dependent Oto is an exchange student who is in his senior year.....Naruyoshi/ Naru-chan is a kind person and his childhood friend though he is older..... He always teaches Oto and takes care of him.... Even though both of them are really closed...but there is something more too it...?? Naru chan is not what it seem like...??