Kokan no junshin: Porori to tsunagaru

Original title: 股間の純真　ポロリとつながる

When Reiji was being beaten up by some thugs in the downtown area, Hikaru happened to pass by and beat up the thugs with her first-degree judo skills. Hikaru and Reiji fell in love at first sight and quickly became passionate, seeking each other's bodies. When Reiji's hand reached Hikaru's lower body he felt something was wrong, Hikaru confessed that he was "attached" to her. Hikaru had been born as a man in the past. Reiji was surprised, but his feelings for her had not changed. Five years later. The two decided to hold a wedding party at the cafe where Hikaru works. Reiji had no parents and grew up in an institution. Hikaru's father Takeshi is understanding of her being a "woman," but her mother Kumiko cannot accept the transformation of her heir. One day, Hikaru receives a message on social media from someone named Maki. She desperately tries to hide her shock when she hears that Maki is Reiji's mother. Hikaru invites Maki to her house, but...