Rakan is a supporting character in Haigakura. He is a nineteen-year-old young man who acts as both the close friend and the trainer of the protagonist Ichiyo. He is known for his generosity toward Ichiyo, who is always short on money; Rakan regularly treats Ichiyo to meals and has never once been repaid. Ichiyo affectionately refers to him as "my wallet," a nickname that captures the easygoing and dependable nature of their friendship. In the story, Rakan's role is closely tied to this relationship, as he provides Ichiyo with training and practical support while also being one of his few reliable companions. His continued kindness toward a friend who cannot repay him reflects a patient and good-natured personality. As a supporting figure, his presence in the narrative revolves around this friendship, and his specific background and personal ambitions receive little focus.