The immortal young man, "Shizuta Ashihara," returns to his hometown after four years. "Manatsu Akabane" and "Chisei Akabane," who are descendants of a family that continues to carry the blood of sorcerers. "Keiichiro Wakura," who lives as part of a family that inherits the art of sorcery, and his servant "Miyuki Takashiro." "Kikata," standing alone in a field of forget-me-not flowers.
Although they live such vastly different lives, their interactions slowly begin to change something that had remained untouched until then. And thus, a long-forgotten tale, which was never meant to end, quietly comes to a close with the passing of a gentle summer.