Rei Suwa

Rei is a man of few words who doesn't mind that [Kazuki](https://anilist.co/character/289968/Kurusu-Kazuki) has already moved into his house. He is physically strong, and his fighting abilities and marksmanship are among the best in the industry. He has a clear separation between his professional and personal lives and spends most of his time at home playing video games. His family is a large underworld family, and his parents have been training him as a gifted assassin since he was a child. He has not been able to escape the family feud and has no comprehension of normal parent-child relationships.