I'm a Powerless Good-For-Nothing Redheaded Witch Who Got Fired but Then Hired on the Spot at the Royal Institution for My Herbal Expertise!

Story :  "Ruzena Rezek, you're fired!"
"Everyone was just being considerate of you. You're a witch who can't use magic, and you can't even compound medicine!"
When the head of the apothecary workshop suddenly fires her, Ruzena not only loses her job but the place she was living, too! Then, by coincidence, she meets a noble named Eric, who wastes no time asking for her services.
"Ruzena, your knowledge of herbs is amazing! I've established the Royal Research Institute. Won't you come work for me?"
Having never been complimented before, Ruzena can't believe her ears. She agrees on the spot, but working for Eric isn't just about apothecary work...?
A class gap love story between a witch who can't use magic and an eccentric noble who dotes on her!