My Rival Is Behind You

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; that someone being a spooky ghost who is also in love with Shiori! Perhaps the strangest love-triangle yet, between a cute girl, a guy who can see ghosts, and a master cock-blocking yuri ghost.