Heartseed

Character Overview
The sentient that is responsible for the body-swapping phenomenon, he normally takes over the body of Gotō Ryūzen. He is not limited to possessing only Gotō, as he was able to possess one of the Cultural club members without difficulty.

Motive
He wishes to be entertained. So he randomly picks the Cultural club members of the Yamaboshi Private High School, just because he thought they are an interesting bunch.

Authority
He has control over the Body-swapping phenomenon, capable of taking over anybody he wishes. He can start and end the body-swapping process; however he allows the body-swapping to randomly choose the candidates amongst the group as it will be more interesting. He is also capable of letting the candidates choose who they wish to body-swap with amongst themselves, but only when he desires it.

Trivia

 * Heartseed usually take control of Iori whenever the phenomenon is near to the end.
 * Heartseed took care of No.2 when he starts causing unnecessary trouble for the StuCS group.