Series by 尾崎かおり

Tsugu, a high school girl, once shared an unbreakable bond with her childhood friends Sora, Yushin, and Asari, burying a time capsule as a symbol of their friendship during their elementary years. Years later, as they drift apart in a stifling rural town, Tsugu and Sora run away to Tokyo, while Yushin and Asari face their own struggles back home. As the four navigate fractured relationships and the weight of their past promises, this poignant tale blends youth, nostalgia, and redemption, following a group of friends seeking to heal old wounds and rediscover the connection that once defined them.