Rei Suwa is one of the main protagonists of Buddy Daddies. He's an assassin alongside Kazuki, known for his quiet demeanor but exceptional physical prowess and marksmanship. When he's not working, he's basically glued to video games—it's pretty much his entire social life. Despite his withdrawn personality, he's pulled into the unexpected role of being a parent when a kid enters his and Kazuki's lives, which becomes the emotional core of the series.
Content compiled by AnimeList.moe from publicly available sources.