Jinta Yadomi lives in seclusion and shirks his academic responsibilities by playing games all day. But when he is visited by Menma, a childhood friend who had passed away years ago, his tranquil life takes a dramatic turn. Menma entreats him to fulfill a long-standing wish of hers, and though Jinta initially dismisses her as a figment of his imagination, he gradually realizes Menma's apparition to be authentic. Reuniting with his childhood buddies, who had all gone their separate ways after her demise, they band together to help soothe her spectral presence. Can they overcome their own lingering sorrows and qualms to guide Menma towards eternal rest?