My Rival Is Behind Youライバルは君のうしろに; 恋敵は君のうしろに; My Rival Is Behind You; Koigataki wa Kimi no Ushiro ni; 恋敵〈ライバル〉は君のうしろに; Rival wa Kimi no Ushiro ni

Asahi Rintarou is a 2nd year high school boy who called out his senpai Shiori to a park in order to confess his love. As he readies to convey his feelings he realizes that they are not alone in the park and that someone was right behind them the whole time.