When Daisey runs afoul of the leader of a group of delinquents who threatens to trash Kaimei High unless she becomes his woman, Tsubaki takes it upon himself to avenge her honor and set things to rights!
And he apparently becomes easily enraged.
Parece que es una persona 
extraordinariamente mala.
Y parece que se enfada con facilidad.
E, pelo visto, ele fica nervoso fácil.