Kouhei Ueno

Kouhei Ueno is the inseparable best friend of protagonist Tsubaki Akira. Since their first year of high school, he has been secretly dating his classmate Okayuki. Although he initially kept the relationship under wraps, he eventually became known for constantly flaunting his love life in front of Akira, even positioning himself as a seasoned relationship expert. As one of the few characters in the story in a steady, committed romance, Kouhei is fiercely protective of his girlfriend and harbors a noticeably strong sense of possessiveness.