When Touya experienced his first wet dream, Naoto assumed the role of teacher and educated his younger brother on how to pleasure himself. However, this innocent lesson led to unexpected consequences. Witnessing Naoto's orgasm lit a desire within Touya to possess his older brother, a desire that remained hidden due to the taboo nature of their relationship. But Naoto harbored his own dark secrets that would soon come to light with a significant shift in their family dynamics. Now, the brothers must confront their complicated feelings for each other and find a way to move forward.