As a mediocre college student, Sousuke-kun discovers comfort in conversing with Tsubasa-chan, a girl he met through a dating app. Her delightful and pleasant demeanor lifts Sousuke's spirits during their interactions. However, Sousuke is unaware of Tsubasa-chan's true identity. A casual exchange triggers a series of events that unleashes Sousuke's worst fears. The enigmatic Tsubasa-chan is determined to obliterate everything that holds meaning for Sousuke, leading him on a suspenseful, unpredictable path.