Ageha Yusa is a character appearing in the Yu-Gi-Oh! OCG Structures manga series.
Ageha and her brother lived in the countryside. One day she received a job in Tokyo and offered him to come along. After settling in, Ageha enters Shoma's room to see if he unpacked only to find him gone. She isn't surprised as she correctly guesses that he left to go to the card shop. After learning that Shoma is late coming home, Ageha vows to give him the mother of all lectures when he returns. The next day Ageha attempts to speak to her brother but finds him unresponsive. She's guesses that he's already in Structure World communicating with his deck.