Mamoru Koyama (小山 守 Koyama Mamoru) is one of the newest mechanics that were recruited by the Energy Management Center as part of CB-01's maintenance team, which consists of around fifty individuals. He is eager to help the Go-Busters and has a lot of potential. But being a rookie, he is still a bit jumpy around the hangars, which causes Hiromu Sakurada to doubt if he could make it. Cheeda Nick, however, recognizes his potential, having been on the receiving end of his care. Koyama even has a log of all his maintenance reports, with an optimistic personal message and shoutout to the CB-01 and Go-Busters every log.