|Gallery | Quotes | Relationship|
|Family||Nagiko Oboro (Younger sister)|
Tsukiko writes erotic novels and has interest into Terumi Minamoto because she finds him as a good source material for her novel. She's close friend of Asahi Momozono. She has interest in relationship between Terumi Minamoto and his aunt, Kaoruko Fujiwara. Initially just supportive character but later she is revealed as eleventh target.
Tsukiko is a beautiful girl of medium stature, has purple eyes and long black hair up her back, with two small ponytails and a bow, and wears Gothic-Lolita dresses
Tsukiko seems to have a fascination with Shotacon and Erotic Novels
In her first encounter with Terumi, She hears him say that "he will become a man who only lives for sex", then she uses Terumi as a model to apply makeup and tells him to keep his secret. Time later she hears a conversation between Kaoruko and Terumi offering him her body and saying "she will stop at nothing for his investigation", to which Kaoruko decides to explain the situation by saying that she and Terumi "share a special relationship" because Terumi went to A school for males and did not have a mother, she decided to teach him about women using her body and also asks Tsukiko if she would be willing to do it with Terumi. Immediately afterwards she says that this would be the development of an erotic novel, Tsukiko then takes an interest in them to make them the source of material for her novel.
- Her role as target was little zigzagged by Kaoruko, after slightly implying her as third target, by asking whether she would be willing to do it with Terumi, Kaoruko quickly denied Tsukiko as a target. However much later Kaoruko reveal that Tsukiko actually IS eleventh target.
- Her last name has not been revealed until chapter 262.
- She appears for the first time in chapter 8 of the manga.