Sacred Seven (1-4 volumes)

Publisher: Kodansha
Author: Kyotaro Azuma, Hajime Yatate
Size: 128mm x 182mm
Number of books: 4
Language: Japanese
Category: Youth manga, manga
Latest publication date: 2012-10-09

Synopsis:
Alma Ranji, 17 years old. From a past event, he lived as much as possible with others. Only Mr. Wakana Ito, the director of the "mining part", was carelessly treated and solicited to the re -three mineral stone club.
At that time, Aiha Ruri, who claims to be the CEO of the Aiwa Foundation, appears at Alma's home. She keeps fighting a monster called "bruise", and says that the power of Alma's "Sacred Seven" is the only power that can compete with the wrong stone ...