Very exciting! I wonder what exactly Suteguma's train of thought was to arrive at his current conclusion, I hope that will be revealed in the future. Also, it seems like we got a hint as to what Suteguma's power/ability might be. Something related to hearing? Maybe his sense of hearing is more developed and he can hear differences in the pitch of your voice, or your heart rate? It could also just be a metaphor that has nothing to do with his ability, we shall see! Can't wait.