Tsukito has been chosen as a disciplinary member, but because of his eagerness to fulfil his responsibilities, he loses sleep and faints. Thoth threatens him that if he does something like this again he will be suspended, making Tsukito extremely depressed and determined to find out the reason for his mistakes. In response, Loki mischievously gives Tsukito and Yui a pair of lovers' rings that glue their hands together, and is unremovable until they gain a deep understanding of each other's hearts...