Kokoro is a student of class 2-S in Kawakami Academy. She is the heiress of the Fushikawa clan (one of the three noble families of Japan) who likes to brag about her noble lineage. Egoistic, has superiority complex. She doesn't have a good relationship with the members of class 2-F, since she considers them inferior monkeys and loves to show her superiority to them. She doesn't like the uniform of the school, and she prefers to go in her high-class kimono, to show the difference in class between her and the rest.