Gakuen Heaven: Endou - Calling You

After winning the school MVP award as the partner of mysterious student Kazuki Endo, unremarkable student Keita Ito is allowed to remain in the legendary Bell Liberty School. Soon after, Kazuki reveals that he is the school's Director and Keita's beloved "Kazu-nii" from his childhood. In this alternate Gakuen Heaven story, Keita is assigned the enormous task of organizing Ginrei Festival, a chance for the students to showcase their talents to the companies that sponsor BL School.

(Source: Blu Manga)

An alternative retelling of Gakuen Heaven, based on the Endou route of the original visual novel.