Lobelia

 is the 25-year-old former researcher.

History
She was sexually harassed at work and harmed her pursuer with her familiar beast. Unfortunately, he was also her boss, who demoted and later fired her. She still researches slimes but had not only moved to the slums but worked in a brothel as a servant doing odd chores a few times a week to make ends meet. Left both the slums and the brothel to work in Ryouma’s shop along with Caulkin and Tony.