Pia "Senior" Stras

She knows how to cast her spells and how to handle her weapons in different situations - she is a witch, a warlock. Ready to unleash hell on earth when she has to - to devour the enemys by the flames of hell to gather their souls to make them feel pain!
But that just one shadow side on hers~
She is the big sister of Pia "Junior" Stras, she was eleven when Junior was born. She learned early how to fight and how to brew with her alchemist set.
She is the opposite of Junior, she is more friendly and less cheeky, she shows more manners then her little sister. But she never gives up her little sister, she loves her and will always protect her, no matter what happens.
With 18, Senior got mutated by an accident with wrong ingredients which caused an explosion with her alchemy set. It unleashed an mutation which was making her bigger in size, physical stronger, growing long floppy ears and a long big tail.

This picture was brought by Pav on FurAffinity, check him out ! Thanks!