Moeyo Ken is an anime series based on an OVA created by Hiroi Oji with character designs provided by Rumiko Takahashi. It aired from July to late September 2005.
The story takes place in the Meiji Era in an alternate universe, where Ryunosuke Sakamoto, son of the president of the Shinsengumi, and his illegal yokai Nekomaru is travelling from Shanghai to Kyoto.
Hello From the Countries of the World (S01E11)
The population of Kyoto mostly gets inflated by nikumans stuffed with gas.