PiHai is a black fox character consistently dressed in an oversized yellow sweater, his defining charm point. He deeply cherishes his baggy clothing. He often displays an expressionless face, though some portrayals show him with his tongue sticking out. His birthday is May 5. PiHai enjoys mangoes, also listing apples and grapes as likes, and his favorite color is black. His primary ambition is to become a pilot, represented by ✈️. He is the younger brother of another character, Rain; their sibling dynamic includes occasional conflicts over minor matters, comparable to other famous sibling pairs in related media. PiHai is designed to represent Sukai Kinjo of the boy group JO1.