"What would you do if the person you promised to never lose became the one you could no longer remember?" Ili Han-Akil and Kouko Aihara are bound by a love that transcends time, but an accident shatters their world, robbing Ili of his memories and leaving Kouko a stranger in his life. Haunted by fragments of familiarity—a pendant with a promise, “Find your way back to me,” and fleeting glimpses of a girl who refuses to let him go—Ili embarks on a journey to piece together his past. Despite the heartbreak, Kouko remains steadfast, returning to Ili’s side day after day, hoping to reignite the bond they once shared. Together, they navigate a maze of fragmented memories, unspoken truths, and moments of fleeting connection. Their love story unfolds into a tale of resilience, mystery, and sacrifice. Will they reclaim the bond that defies time itself, or will the echoes of the past keep them apart forever?