![](https://cdn.animecharacters.io/images/characters/large/27289-73ecd858.jpg)
Mayumi Yamamoto (山本真弓)
Nanako Yamamoto's younger sister. She's working as a part-time at a publisher. She's considerate and lively, but when it comes to guys, she's as oblivious as her sister. (Source: starchild.co.jp)
Voice Actors
Chiwa Saitou
Japanese