(Hidden) The beast -kun will not be released once you hold it (1 volume 1)

the publisher:
Author: Inamoto
Size: 128mm x 182mm
Number of books: 1
Language: Japanese
Category: Female manga, manga
Latest publication date: 2020-06-27

Synopsis:
Chiyuki, who is a 145cm short stature, knows that he was in the same period of 190cm tall boy, Gen Gen, but he was not his favorite, and he realized that his love was over before he began.
One day's crowded train, the place where it was buried in the crowd, was protected by the Gen, and there was a strong abdominal muscles in front of me.
The exciting Chiyuki touched the body innocently, and when I tried to touch the body, there was a hard and hot thing in my stomach ...?