Natsuki Shinomiya

"Satsuki" first started appearing after Natsuki was betrayed by a teacher whom he greatly admired/loved during his childhood. Since then "Satsuki" has existed in order to protect Natsuki from such pain again, resorting to violence & force when Natsuki does not. Satsuki is originally wary of Haruka because she is similar to the teacher who betrayed Natsuki's feelings.