When Jinta Yadomi was a child, he stood at the heart of a tight-knit circle of friends — a golden time when laughter came easy and the future felt endless. But as the years passed, the bonds that once seemed unbreakable began to fray. By the time they reached high school, those friendships had faded into distant memories, each person drifting silently into their own world. Now, one of those long-lost friends, Meiko Honma, returns with a strange request — a wish she wants Jinta to fulfill. The problem is, she can’t remember exactly what it is. Despite her confusion, Meiko won't let go of the idea, and eventually, Jinta relents. With little more than a forgotten promise to guide him, he sets out on a journey to grant a wish lost to time. But doing so may require more than just his determination. It may mean bringing back together the very people he hasn’t spoken to in years — Naruko Anjou, Atsumu Matsuyuki, Chiriko Tsurumi, and Tetsudou Hisakawa. People who once knew him better than anyone else, yet now feel like strangers. As Jinta struggles to uncover the truth behind Meiko’s forgotten wish, the walls built over years of silence begin to crumble. Buried feelings resurface — joy, pain, regret, and longing — stirring emotions none of them ever truly let go. And in rekindling these connections, they might just rediscover not only the friends they once were, but also the people they’ve become.