Kotaro (小太郎) is a Wolf Fang Druid who joined the Crescent Moon Alliance after being rescued from Hamelin. In battle, he wields two hand axes. Apparently, he has an easy time taming baby animals and monsters.
In volume 13, he becomes one of the participants of the Akiba Guild Hall Raid, and is a member of Team D.
Akiba Guild Hall Raid arc
Kotaro, along with the other Hamelin rescuees plus Serara and Ashlynn, is a member of the Akiba Guild Hall Raid. He is on Team D with Lelia, Yuzu, Death Gazer, †...Seiya...†, and Pekopeko Pizza.