Rion Hibiya

Rion is a 10th grader from the same high school as Homare. She belongs to the school's Kendo club. She first appears in chapter 48 when she stumbles across Homare making love to Wako in the forest. She made Homare think she was male. She dislikes Homare and offers to challenge him to a Kendo duel on the condition that if she wins, he will have to stop the secret sex act. She eventually lost and Homare realized she was actually female and made love to her