A senior student at Kiyosumi High School serves as both the president of the school's Mahjong Club and the leader of its Student Congress Council. This individual possesses exceptional intelligence and confidence, excelling in assessing others' strengths and weaknesses, whether within or outside of the game of Mahjong. Furthermore, this person has extensive experience with the sport, having developed friendly relationships with professional players. Additionally, they demonstrate a remarkable ability to grasp complex concepts at a faster rate than most individuals.
The most prominent example of this being that she mostly, if not fully, understood what was going on behind Toukas misplays against Momoko in the finals sooner than most of her fellow players.