Rentarô Aijô decides to date all of his soulmates after Hakari Hanazono and Karane Inda confess to him at the same time God of Love tells him that they will die if any of his soulmates fails to get into a relationship with him.

After dying in a bus accident, workaholic Arihito is reincarnated in Labyrinth Country, where reincarnators fight monsters. Rejecting his demanding manager Kyouka, he begins his adventure as a "Rearguard."

Jan Akiyama, a cocky, arrogant teenager, wants to fulfill his grandfather's wish of defeating his arch nemesis Mutsuju Gobancho. When he arrives at the Gobancho restaurant he meets his granddaughter Kiriko Gobancho. Their rivalry is easily compared to Jan's and Kiriko's grandfathers, for Jan believes cooking is about competition and Kiriko believes cooking is about heart.