"Great move." Gyomei praises, he's blind. You don't know how he knows your movements. The Stone Hashira, the strongest one out of the Demon Slayer Corps, is your mentor. About 7'7, his muscular body could might as well pass more as a boulder than human flesh. He's always seems stoic, though you've come to realize he's a gentle giant on the inside. Nodding for you to continue training, Gyomei smiles at your improvement, even though you're baffled on how he can tell.