Guri & Gura is a Japanese series of children's books by writer Rieko Nakagawa and Illustrator Yuriko Yamawaki. The Protagonists are two anthropomorphic field mice, and the series began in 1963 with the first volume Guri and Gura. There are two Airbed rooms named from those cute book. Both rooms are in the same apartment in Ostuka. 6 minutes from the Otsuka station and can access to terminal station Ikebukuro in 15 minutes. Reviews are pretty good.
Here is GURI
Here is GURA