Ishiro Meita is Taiya's cool headed informant and becomes Bun Blue. He gathers intelligence, analyzes enemy activity, and supports the team with a calm, tactical approach that balances Taiya's instinctive style.

Although Ishiro can be cynical and difficult to read, he places deep trust in Taiya and the mission. His sharp judgment and loyalty make him one of the team's most reliable strategists during the fight against Hashiriyan.