Ikaru Shinji, a quiet but determined high school student, finally gathers the courage to confess to his longtime crush — his graceful upperclassman, Tachibana Rei. But reality isn't as kind as his daydreams. He is flat-out rejected. What Shinji doesn't know is that Rei already has someone in her heart.
As Shinji falls into a pit of emotional despair, an unexpected twist of fate appears — a mysterious voice whispers from nowhere and installs the "System of Rejection" into his reality. Now, his heartbreak becomes... a mission.
With every romantic rejection, Shinji gains strange "Rejection Points" that allow him to unlock new social skills, influence fate, and even manipulate story events around him. But can love truly be gamified?
In a world where emotions and strategies collide, will Shinji use the system to win back Rei... or discover a deeper love he never expected?