The second Luna film.

Physician Koichiro Kiby loses interest in work and begins drinking in a local park after the death of his wife. One day he encounters a girl who knows intimate details about his life. Now, he must unlock her mystery in this fantasy drama.

When her mother falls ill, Fumi visits Yokohama to search for her missing father, hoping to get his help. Fumi's father was a legendary mahjong player. Using a photograph as a clue, Fumi searches for him, but before she knows it, she steps into the underground mahjong world. She then learns of her father's tragic condition.