Kisumi Takane possesses striking maroon or lilac hair flowing to her waist and distinct violet eyes, often accentuated by glasses. She currently teaches at a college. A prior teaching assignment ended in scandal when she became romantically involved with Shin, one of her students, forcing her transfer to her present institution. At this new college, the Dean exploits her perceived flirtatious behavior to blackmail her into performing sexual services. Simultaneously, she finds herself developing romantic feelings for another student.