Native Title: Dr.コトー診療所2004
Also Known As: Dr. Koto’s Clinic Special , Dr. Koto Shinryojo 2004 , Dr. Coto’s Clinic Special
Director: Nakae Isamu
Genres: Drama, Medical
Tags: Adapted From A Manga

One year after the main story.
TLDR: after season 1, before season 2.