Kyouko Takasaki

A top student at an elite school, she's asked to tutor Jin, who is the same age as her, and raise his ranking significantly. Compassionate and naive, Jin finds her easy to manipulate emotionally for his own amusement. When Jin decides to score in the top 30 for his grade so she'll leave him alone, she reluctantly follows through on her side of the promise, but finds she may be more attached to him that she thought... (Appears only in Sensei no Himitsu story.)