Few people are aware that one of the city’s most skilled and formidable Mahjong players is actually a young high school boy. Kei, a quiet teenager, relies on his keen observation skills, strong determination, and extensive game experience to navigate a world filled with powerful, wealthy, and dangerous individuals.
Currently, he is hiding a girl named Amina, who has entered the country illegally, and is dedicated to keeping her safe from deportation. During the day, he dozes through classes, while at night he plays high-stakes Mahjong, biding his time for a worthy opponent to challenge him.