Konomi ja Nai kedo 1

The sibling rivalry between Ritsuki and Kyouya knows no bounds, with their arguments escalating into full-blown fights even when they're surrounded by friends. However, their latest encounter takes an unexpected turn. On a rainy day, Ritsuki rushes home and collides with Kyouya at the entrance, sparking her anger. But when she catches sight of his chiseled, shirtless physique, she's taken aback and momentarily stunned. As she tries to make a quick exit, Ritsuki trips and injures her leg. Kyouya rushes to her aid, bringing a compress and bandage to her room. As he enters her space for the first time in years, he's struck by the realization that his sister is, in fact, a member of the opposite sex. Attempting to brush off the uncomfortable feeling, Kyouya tries to make a swift exit, but Ritsuki insists that he give her a massage to ease her pain. Feeling guilty for causing her injury, Kyouya reluctantly agrees, only to discover that his sister's body is exactly the type that he's attracted to.