[Ie-i Tomii] O, (okonma) 1-3

A mischievous younger sister decides to push the boundaries of sibling relationships by dressing in a provocative catgirl outfit. What starts as a simple attempt to look cute quickly turns into a bold, unexpected encounter when she reveals her costume to her brother, leaving him stunned and questioning if her intentions are truly just playful. As she teases him with her feline transformation, the tension builds around her sudden, daring advances.