|Sensei Ken Itou|
|Manga Debut||Chapter 1|
|Anime Debut||Episode 1|
He once mentioned that Sumiyoshi was useless for always being late to school.
In ep. 4, he used the Kamakura Bakufu's phrase "create a great nation with me" to propose his fiancee.
When Nagi was still in the 2-2 class after class started, he told Nagi to return to her own class.
Nagi replied that heroes always comes in late. Sensei replied and told Nagi to get herself back to Mars.