Atsuya Kusakabe

The Grade 1 swordsman who fights Sukuna with Simple Domain.

Atsuya Kusakabe is a Grade 1 sorcerer and teacher at Tokyo Jujutsu High in Jujutsu Kaisen. He has no innate technique, so he relies on swordsmanship instead.

Quick Facts

Grade: Grade 1 sorcerer
Affiliation: Tokyo Jujutsu High (faculty)
Style: New Shadow Style: Simple Domain

Facts from the source article.

Background

He has mastered the New Shadow Style: Simple Domain, an anti-domain technique that cancels out a domain's sure-hit effect. His sword moves include Batto Sword Drawing, which adds speed, and Evening Moon Sword Drawing, which pairs Simple Domain with a stronger output of cursed energy. Kasumi Miwa shares his set of skills, and he is likely her mentor. Having seen Sukuna's power in Shibuya, Kusakabe distrusts Yuji Itadori at first, but in the end he joins the fight against Kenjaku and Sukuna. In the Shinjuku Showdown his skill with Simple Domain proves effective against Sukuna until heavy injuries force him to fall back, and Ui Ui and Miguel carry him to safety.