It's a Rumic World: 50th Anniversary Weekly★Shonen Sunday
The characters from Ranma 1/2, Urusei Yatsura, and Inuyasha all gather together in a short crossover to introduce the 50th Anniversary Weekly Shonen Sunday "Rumic World" Museum opening, celebrating Rumiko Takahashi's manga work.
Quality: HD
Runtime: 3 min.
Release: 2008
IMDb: 8/10