His name is Soyama Hakuji. Though he was rough and skilled at fighting, he is a boy with a very warm heart. He cherished his family so much that he stole medicine for his sick father. Hakuji has a strong sense of gratitude and worked harder than anyone else to protect the people he loved. After losing his father and wandering aimlessly, Hakuji met the martial artist Keizo and began a new life at his dojo. There, he met Keizo's sickly daughter, Koyuki, and they fell in love. Keizo gave his blessing for the two to marry. Fiancée: Koyuki

His name is Keizo. He is the master of a martial arts dojo. His family consists of his daughter, Koyuki; his wife passed away earlier while caring for her. He has a disciple named Hakuji. He has a warm and benevolent personality. He values how a person lives in the future more than their past. He trusted and took in the wandering Hakuji, caring for him like a son. He brought Hakuji, who had nowhere to go after losing his father, to his dojo and taught him martial arts. Seeing how sincerely Hakuji cared for Koyuki, he permitted their marriage. He expressed his trust by saying, "I'm leaving this dojo to you from now on." Keizo is the person who first made Hakuji feel the warmth of family and hope.