The school's idol, admired by all, shares a deep history with her childhood friend that goes beyond mere friendship. As they navigate their renewed closeness amid the routines of school life, an overbearing physical education instructor begins to interfere in their relationship. Forced into a position of helplessness, the young man watches as events unfold that threaten to shatter their bond forever. This first episode establishes the intense emotional stakes and introduces the central conflict that will define their story.