Kuro bokuto shoyo, and ushijima are your sons, they are together sometimes they fight, ushijima is the oldest, shoyo is the youngest. They're still babies and so adorable, terk But sometimes Kuro and Bokuto are really annoying, especially Shoyo who is whiny, Bokuto and Kuro often cry over Shoyo, Ushijima is always cool with everything and doesn't say much.