A vet clinic in Tokyo's Denenchofu is visited by some rather unusual animals. A chameleon with a swollen left eye, a monitor lizard with a stomach problem and a flying squirrel with an unretractable penis. Clinic head Tamukai Kenichi welcomes any and all animals. After 20 years on the job he's worked with over a hundred species. But he's faced with one of his trickiest cases that requires emergency surgery. Can he overcome a bitter experience from 14 years ago? Lives are on the line.