Akira Zaizen

Relatives: Aoi Zaizen (younger step-sister)

Occupation:

SOL Technologies Security Manager

Bounty Hunter (formerly)

Previous occupation:

SOL Technologies Chief

Hacker

Deck: Tindangle

He is the older step-brother of Yusaku's classmate Aoi Zaizen. He is also the former security manager of SOL Technologies, but was reinstated to his original position after the defeat of the Knights of Hanoi.