When Nozaki-kun discovers a mysterious book that seems to open portals to different worlds, he is thrown into a web of parallel realities where his true love is not who he thought it was. Can he unravel the strings of fate and bring his heart's desire to...

In a whimsical labyrinth, a young girl named Yumi seeks the hidden key to unlock her past, leading her on a heartwarming adventure with Nozaki-kun and his friends, where secrets, friendship, and self-discovery intertwine....