In the suburbs of Tokyo, a group of six girls have played together at the park since they were little, but eventually have to switch schools. Before they leave, they plan to make a time capsule, but are unable to do so. The story follows the girls four years later as they meet again.

• Lerche
• Kanae Ito
• Kimiyo Rikutsu
• Yurina Takahashi
• Ayaka Okamoto
• Nozomi Okada
• Sayumi Sebori