what is this green thing?


Maybe it's my fault for not watching from the first season, but I'm wondering,
what exactly is this? it already appear in the very first episode in Hidamari
Sketch × ☆☆☆ (Hidamari Sketch x Hoshi Mittsu), was he ever introduced in the
anime?

![figure in question](https://i.stack.imgur.com/apI5r.jpg)




It is Ume sensei dressed as a Pokemon (metapod). Ume sensei is voiced by [Ume
Aoki](http://en.wikipedia.org/wiki/Ume_Aoki), the manga artist.




It is Ume sensei dressed as a Pokemon (metapod). Ume sensei is voiced by [Ume
Aoki](http://en.wikipedia.org/wiki/Ume_Aoki), the manga artist.

