Taisuke Mishima

Taisuke Mishima (三島 泰介, Mishima Taisuke) is a man Bossun meets who is connected to his father's death.

Backstory
When Taisuke was 5 years old, he chased a ball that had rolled into the street and was nearly hit by a car. He was saved, however, by Ryōsuke pulling him out of the way. Scared and uncertain of what to do, Taisuke picked up the gift bag Ryōsuke had been carrying and, after Ryōsuke told him to become a strong person who can reach out to others in need, fled back home.

Every year on that day, he has gone to the intersection where Ryōsuke died.

Bossun's 15th Birthday
Fifteen years after Ryōsuke's death, a distraught Bossun ends up in the area and Taisuke rescues him from a group of delinquents. Noticing the similarity of appearance between Bossun and his savior, Taisuke learns both his savior's name and that Bossun is the man's son. Taisuke gives Bossun the gift bag Ryōsuke had been carrying, telling him that it seemed to have been a present for Ryōsuke's wife.

Relationships

 * Ryōsuke Kirishima: Taisuke was heavily affected by Ryōsuke's final words to him, and has tried to become a person who didn't bring shame to them. He has always regretted that Ryōsuke died because of him.

Quotes

 * "Those guys are famous delinquents around here. I don't have some big sense of justice or anything, but I couldn't just walk on by."
 * (to Bossun, about Ryōsuke) "I remember clearly the words your father said to me that day. I lived thinking I wanted to become a person who didn't shame those words."