Yoko Nishikawa is a former rich girl struggling with loneliness when carefree glutton Futaba Odagiri and scary class rep No-First-Name Hayama crash into her life and change everything.

Yoko, Futaba, and Hayama learn more about each other as they continue to eat lunch together; they encounter a rival, a sibling, and cats; all the while,Yoko is deciding whether Hayama is kind-hearted or black-hearted.

Yoko and Futaba are in a pinch and need to find part-time jobs to earn money; along the way, the three girls meet Shino Sonobe, Yoko's eccentric former maid.

Yoko, Futaba, and Hayama learn about each others' hobbies and childhoods; they also encounter Yu and Sakura, who stir up a little trouble.

An accident temporarily puts Yoko out of commission, so Futaba and Hayama help out at the patisserie; Miss Sonobe is certainly grateful for the help but she won't stop until she's acquired one more part-time employee.

The girls head to the beach, but instead of enjoying the sun Yoko, Futabe and Hayama are put to work in Sonobe's beach hut.