“I’m glad you’re here,” Gus told her. “I was actually going to call you myself, but then the relay went down.” He started wrapping a bandage around the technician’s calf.

“You were? What’s going on?” Velvet asked. “Is it Edward?” Her eyes fell on the disc-blade hanging from Gus’s belt—his grandfather’s weapon from his Huntsman days.

The boy shook his head. “No, no—he’s fine. The meditation exercises Yatsuhashi taught him seem to be helping his memory.”

Velvet nodded. She had a suspicion it was more than just the mediation exercises that were helping Edward. No one knew for sure what Yatsuhashi had done with his Semblance when he’d tried to heal Edward’s mind … even Yatsuhashi wasn’t sure. His ability was to erase memories, but it was possible that there was more to Yatsu’s Semblance than that. It was something Glynda had emphasized in their second-year classes at Beacon: Semblances can grow as people do. It was reasonable to assume that he might have been able to nudge Edward’s mind enough to give him better recall and help reverse his degenerative mental disease. But Yatsu had always focused more on controlling his power than testing its limits and seeing what else he could do. He hated messing with people’s minds.

- RWBY: Before the Dawn, Chapter 8