Kokoro Gotanda is a Prism Star and a student of Schwarz Rose, belonging to the unit known as The Shuffle. She possesses the figure of a normal teenager, with light red eyes and black messy hair that falls to her ears. A distinctive red heart-shaped mark adorns her right cheek. She sports fingerless gloves and a bracelet.

Kokoro is known for her ability to fall asleep anywhere. Her stated goal is to become the King of Your Heart, and her favorite food is eel. She is a member of The Shuffle, a group composed of fellow Schwarz Rose students.