I want to be an older brother right now! (Volume 1-3 is the latest issue)

Publisher: KADOKAWA/Kadokawa Bookstore
Author: Saru, Fairys
Size: 128mm x 182mm
Number of books: 3
Language: Japanese
Category: Youth manga, manga
Latest release date: 2014-05-27

Synopsis:
Rikuto Mitani has been remarried by his father. In addition, the remarriage partner has a child, and a "brother" named Ayumu with his new mother. However, there is a secret in Ayumu ...