Mahou Shoujo no Shitateya: Kare wa Saikyou de wa Nai ga, Kanojo o Saikyou ni Suru Ishou o Shitatete Nariagaru

Reborn into another world… but make it fashion!
Nijiki, a high school student dreaming of "creating the finest clothes," is granted "costume skills" by a legendary goddess and reincarnated into another world. There, he decides to become a "magician tailor" and enrolls in Merkur Magic Academy alongside Scarlet, a beautiful girl aspiring to be a magical girl...!? An isekai reincarnation × fashion adventure tale of an underdog rising through the ranks at a magic academy!!