It's a Rumic World: 50th Anniversary Weekly★Shonen Sunday
Japanese title: It's a Rumic World: 50th Anniversary Weekly★Shonen Sunday
Alternative titles: Rumic World, Sunday CM Theater, Shonen Sunday Special Opening, It's a Rumic World: 50th Anniversary Weekly★Shounen Sunday
Type: Special
Source: Manga
Episodes: 1
Status: Finished Airing
Aired: Jul 30, 2008 to Aug 11, 2008
Duration: 3 min
Rating: PG-13 - Teens 13 or older
Studios: Sunrise
Producers: Shogakukan
Genres: Comedy, Sci-Fi
Demographics: Shounen

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.