Yoshika is Shimeji's pen case shaped like a red fish. The name was coined by Majime in ss02.
Do not confuse with Yoshiko.
Species
In ss omake 1 it was mentioned that the species of Yoshika is red gurnard (Chelidonichthys cuculus). The fish looks ridiculous:
![](https://upload.wikimedia.org/wikipedia/commons/thumb/8/8e/Red_Gurnard_%28Chelidonichthys_cuculus%29.jpg/1920px-Red_Gurnard_%28Chelidonichthys_cuculus%29.jpg)
Read about the species on: