Mizuha has an unrequited love for Ren, who is a college student. Ren is the center of her existence. However, Mizuha's focus shifts when she meets Chiaki, a peculiar individual who has a deep love for pudding. Whenever someone speaks ill of pudding, Chiaki becomes upset. Despite Mizuha turning down his offer, Chiaki persistently tries to give her pudding whenever they encounter each other.