Read manga: Black Iron Wizard

manga
Summary:

She'll blow punishing fists with a smile! A super crazy heroine from another world appears!

Delice Fahrenheit is from the real-world who has become an outstanding world-class famous wizard. Haruna Katsuragi who is also from the real-world applies to be his disciple. As a person from the real-world, her status was unprecedentedly low. However, through her training with Delice, will her hidden talents finally be revealed? The isekai-fantasy, master-disciple story begins.