Professor

Dr. Mizumi was of an unknown race. Link encountered Mizumi after he found a nearly drowned Rouru in a lake. Mizumi offered to let Rouru stay at his house until he recovered. Soon after, though, Rouru had a fit, and destoyed most of the doctor's experiments. After Rouru was healed, he left with the rest of his flock and Link offered to help rebuild Mizumi's life work.