星咲 天音

Occupation: Up-and-coming idol Activities: Book and art club Favorite things: Protagonist, ice cream Hobbies: Bathing (with protagonist), reading, drawing Special skill: Delusions of grandeur Problem areas: Fear of ghosts The protagonist’s younger step sister, a girl who has dreamed of becoming an idol like her mother from a young age. Her grades in school are top notch, and she is regarded for her beauty. However, she still has a long way to go. She loves her step brother, the protagonist, and takes baths with him in the onsen (among other things). Her measurements grow up to 92(H)-53-84