DOUBT! (Volume 1-4 is the latest issue)

Publisher: KADOKAWA/Kadokawa Bookstore
Author: Sakiya Amano
Size: 128mm x 182mm
Number of books: 4
Language: Japanese
Category: Youth manga, manga
Latest publication date: 2014-02-27

Synopsis:
Kanzaki Ichil decided to look for her father's hidden child who is in the school. He uses his special psychology and observation, approaches his sister's candidate and begins to investigate his body. But the opponent is a girl who may be a sister. Absolutely NG has a romantic feeling. Finding a younger sister full of Daut, can I really find my sister ...?