Kurogane no Mahoutsukai

Delice Fahrenheit, who'd been transported from another world and has been widely-known for being a prominent wizard, has an apprentice who'd also been transported from another world named Haruna Katsuragi. Her status was unprecedentedly low despite being from another world. However, through her training with Delice, her hidden talents were revealed.

(Source: Kadokawa, translated)

Kurogane no Mahoutsukai began as a web novel on Shousetsuka ni Narou on May 10, 2017. The first official volume was published on June 25, 2018 by Overlap under the Overlap Bunko label.