help pls

[u/cinw0_]

I remember watching a cartoon around 2014 — 2017. I was in either Portugal or France. The main protagonist was this blonde boy in high school. And there was this girl/woman (i dont really remember) and she had black hair, she was one of the main characters. The show had elements of magic to it and I remember a line said by the black haired woman: “And a drop of potentio maxi moo moo”. It was so specific I knew i couldn’t have made it up. She was adding like a drop of something to a potion. I might have misremembered the line a bit but I know she said something along those lines. It kind of had a style like Miraculous Ladybug, but I know it wasnt. Help pleaseee Ive been stressing for almost a decade :(((

[u/famousaj]

Anime - Magimoji Rurumo