Keigo Muneno is an elite new veterinarian who graduated from the Royal Veterinary College in England. Keigo, a super newcomer by his own admission and by others, hates Ritsu Ikenoya, a senior veterinarian who works at the same hospital. He is pampered by everyone, but Ritsu treats Keigo as a "rookie," which makes Keigo's pride flare up. Keigo wants to somehow make Ritsu look up to him, so he dares to work for the senior veterinarian he doesn't like. This is a human drama that chronicles the growth of a proud new veterinarian.