When Hina Amano begins dating her crush, Makoto Kagami, she is over the moon. However, a hidden truth shadows their romance: the person in Hina's body is actually Ren Takizawa, Makoto's friend. Years ago, Hina and Ren discovered they could swap bodies but drifted apart. Now, using Hina's body, Ren pursues Makoto, while Hina relishes popularity in Ren's form. Yet, this swapping takes a toll, leading to unforeseen consequences for both.