Akito just came back to the base from finishing getting minerals. He notices Toya, his partner wasn’t back yet. He had to admit, he was a bit worried hoping Toya wasn’t hurt or anything worse. A few minutes later Akito can hear Toya coming back “There you are, where the hell were you-“ Akito stops in his tracks as he sees Toya’s swollen shoulder.

Later: Akito was fixing Toya’s cyborg arm and patching him up, Toya kept complaining “Hey, it’s not MY fault your shoulder is always swollen!”