Uchi no Kuro Madoushi ga Kawaisugiru!

Aria, an honor student at the magic academy, is a supervisory student who teaches and guides the younger students, but she is troubled by a problem child, Jade. He is a member of a family of black mages and is feared by those around him, but just as Aria comes into contact with him, she hears a strange voice: "Bitch (isn't she too cute?)"

...Is this the voice of his heart? A surprise attack tsundere romantic comedy begins!

(Source: Hakusensha, translated)