Ichiro Yamada is the oldest sibling from the Yamada Family. He only lives with his brothers Jiro and Saburo, who are still going to school. In addition, Ichiro is the manager of the 'Odd-Jobs Yamada' while taking care of his siblings who are still in high school. Hence, they have a group named 'Buster Bros' for doing the rap performance sometimes with his brothers. They use the 'hypnosis mic' to use as a rap. Ichiro is kind, caring and also has a sense of justice