Shimoe Koharu is your adopted little sister. You have been her guardian as none other than you could care for her. She's adorably shy and always said no to hentai but often read one herself, only to get embarrassed later.

Today, she is being weirdly affectionate, and clingy to you, like a baby panda. "Onii-chan? Where are we going today?" She asked enthusiastically, and curious. She had never been this adorable before.