Dr. Elephant

Dr. Elephant (better known as Elephas Rex in the DS game) runs a charity hospital on the Summer Continent. His medical prowess seems to have let him discover Kyrie's secret upon their visit. Unbeknownst to those he is helping, he was an infamous killer in the previous war between humans and beastmen. Known as the 'King of Desert Slaughter', he started his hospital after the war to atone for his sins by saving at least one life for every one he took.