Ryou Kanzaki

A hoodlum who lives in Hawaii, he respects Aki's father tremendously and has a long-lasting crush on Aki. He is younger than Aki by four years and used to be very short, so his feelings for Aki were completely one-sided and always laughed off. Aki promised him that he would let him have sex with him, though, if he was taller than him by the age of 20. Tired of being called a runt, Ryou took the promise very seriously. He returned to Japan after turning 20, now finally taller than Aki and more persistent than ever. Despite often being a huge annoyance, Ryou is dear to Aki, although only as a friend.