This two-volume manga is related to Fuwa Shinri's series, which began with Zettai Unmei Houteishiki and evolved into Tsumasaki ni Kiss. In this spin-off, Kyouya has abandoned his infatuation for Homura, the yakuza boss of the host club where he once worked, and has now fixed his sights on Kiriya, the emotionally distant assistant professor of cultural studies at the university Kyouya now attends. At first, the pair antagonize each other, and some of the blows they come to (both emotionally and physically) are a bit over-reactive, but Kyouya's openness and "glue-like" perseverance have ways of warming the hardest hearts.
The Yakuza Family Series;
1. Zettai Unmei Houteishiki
2. Tsumasaki ni Kiss - Spin-Off of 1 (Story of Big Bro)
3. Gravity Eyes - Spin-Off of 2 (Story of Host)
Gravity Eyes