Kadomatsu, a computer scientist and engineer for Heim Robotics, transitions allegiance to the Ayato Shopping District team after their victory over Heim’s sponsored fighter, Kamase. Though unskilled in direct Gunpla Battle, his programming and AI expertise proves vital to the team’s advancement. He equips them with Robota, a prototype toybot integrated as their third member. During the “Runner Prison” crisis, he counters a network virus by embedding a vaccine within the Blazing Gundam’s mask, thwarting data-erasure traps.

In *Gundam Breaker Mobile*, he pilots an SD Knight Gundam, blending technical innovation with tactical combat. His behind-the-scenes strategies include reprogramming enemy AI units to sabotage their creators during pivotal battles. Across games, OVAs, and spin-offs, he consistently applies his research background and engineering hobby to develop technological solutions—enhancing team capabilities, neutralizing digital threats, and advancing their objectives through calculated, pragmatic problem-solving.