
S01E01 The Special Circumstances of My Bathtub
High school student Tatsumi lives alone. One day he spots a person while walking by a river. He approaches the figure and discovers a beautiful man collapsed on the ground.
Tatsumi informs Wakasa and Takasu of a rumor about a ghost appearing in a nearby park. Behind Tatsumi, a mysterious white object appears... The white shadow tells a surprised Tatsumi, "Nice to meet you. My name is Mikuni."
Tatsumi is a high school student who lives on his own, until a merman named Wakasa takes up residence in his bathtub. His solitary lifestyle is turned upside down by the self-centered (but handsome) new roommate.