Until the age of four, Ki had everything to be happy. But that was before Hi arrived: an adorable little brother, smart, kind, and therefore terribly annoying! Ki then came up with a brilliant plan: tease, bother, and sometimes even blackmail his little brother. The problem is, even as a kid, Hi is perfectly capable of defending himself! In short, the battle between them has been raging for years, and there’s no sign of it calming down anytime soon… But they’re brothers, and you know the saying: opposites attract.