Loretta and Alto are siblings not related by blood who have never gotten along due to Loretta's intense tsundere nature that makes it impossible to say what she means. But Alto recently had a one night stand with a mystery woman that he's desperate to track down, and Loretta has a secret: it was her all along. She's always loved her brother, she just doesn't know how to express it! It's pretty predictable stuff but not terrible. No explicit scenes, btw. Trigger warning: mild incest (siblings by adoption)
Why Don't You Lift Up That Skirt And Show Me Yours, Sister?