At work he's focused/sticking to task, professional, serious, and can be ruthless. But at home, Rei displays a lazy shut-in attitude, barely speaking or making eye contact. He plays video games most of the time when off work and relies on Kazuki for housework as Rei doesn't know how to cook or clean. Rei is granted to live away from his dad for next 3 years after vowing to his dad he'd return to takeover the clan and brought a duplex apartment to live in. Rei lives with Kazuki and Miri.