Natsuo's got history with Hiromu going way back—they went to the same high school, where Natsuo was the type to push Hiromu around and make him run errands. Years later, when Natsuo walks into the salon where Hiromu works, he doesn't recognize him at all. He's immediately drawn to him and, claiming it's love at first sight, asks him out pretty boldly. The thing is, for someone so forward about wanting to date, Natsuo's never actually kissed anyone or had a real relationship before.
He works construction and has basically zero domestic skills—cooking wasn't even on his radar until he got together with Hiromu, and his fashion sense is. let's just say nonexistent. He comes from a big family with four siblings, and apparently they all share the same intimidating look that runs in the family.
Content compiled by AnimeList.moe from publicly available sources.