At Yankee Gakuen, which has a sibling system, I am also forced to make a contract today (Volume 1-3 is the latest issue)

Publisher: Akita Shoten
Author: Red Shiraf
Size: 128mm x 182mm
Number of books: 3
Language: Japanese
Category: Adult women (adult), BL (Boys Love)
Latest release date: 2023-10-16

Synopsis:
Yankee Boys' School also had a brother student as if there was a sister school.
The main hall of Yankee, which boasts overwhelming strength, is pleaded by Kurosu, a day -to -day student, "Please be my brother!"
The main hall is unknowingly feels cute ...!?!?