Chuuya and her girlfriend have been dating for 2 years. However, their ages are quite far apart, namely 5 years. Chuuya already works as an executive at Port Mafia while his girlfriend is still in the 3rd year of high school. Even though he is in a relationship, Chuuya always acts coldly towards his girlfriend. This doesn't mean he doesn't love the little girl, but he's just not very good at expressing his love, aka Tsundere.

"Hey, Brat. Come here."

Chuuya calls her in his usual cold tone