They're based on shrews, art (painting and writting specifically) and ballpointpens +Arew is reminiscent of a shy art kid caught painting on the walls while Bírewpen is an older writer
- AREW (Normal)
The tip of Arew's tail is covered in dark viscous substance, they smash berries daily to refresh it's color, leaving behind a trail anywhere they go
3.a BÍREWPEN (Normal/Steel)
Their fur hardened in places Bírewpen's smash entire trees just to get into more berries, the lettering they leave behind with their tails seems to be a secret language only they and their pre-evolution are privy to, no humans have been able to successfully and completely decipher it
by AlternativeNo7910