Ranma ½: Big Trouble in Nekonron, China
A comedy film that brings humor and levity to its premise.
All is well at the Tendo residence when from out of nowhere, a Chinese girl named Lychee appears, seeking revenge on Happosai for a broken promise made since her birth. Things get worse when Kirin and the Seven Lucky Gods appear and abduct Akane to take as his wife. Ranma and the gang must travel to Nekonron, China, and save Akane from getting married to Kirin. (Source: ANN)
Plot summary from MyAnimeList. Data and images via Jikan API.