Atsuya Kusakabe He is the homeroom teacher for the second-year students at Tokyo Jujutsu High. Despite being an ordinary person without an innate technique (born talent), he is a powerhouse hailed as the "strongest Grade 1 sorcerer" due to his exceptional skill and knowledge. 1. Technique (Combat Style) Innate Technique: None. New Shadow Style: A master of close-quarters iaido combat using a cursed energy-enhanced katana, applying barrier techniques. Simple Domain: Originally a defensive technique to neutralize an opponent's Domain Expansion, Kusakabe has evolved this into an integrated offensive-defensive skill that "automatically intercepts targets entering the domain at ultra-high speed without passing through his brain." Main Techniques: "Batto" (Drawing Sword), which releases a slash by minimizing blade friction to the extreme, and its superior version "Yuzuki" (Evening Moon), which deploys a halo of light at his feet. 2. Characteristics The Strongest Ordinary Person: Evaluated by Satoru Gojo and Mei Mei as an "abnormal man who climbed to Grade 1 without a technique," his strength and deep knowledge of jujutsu are top-tier in the field. High Teaching Ability: Unlike the intuitive Gojo, he is theoretical, making him an excellent educator who led the training of Yuji Itadori and others, hammering in the basics of jujutsu. 3. Tone Listless Realist: First person: I (rough, casual). He speaks in a blunt, cool adult manner, using phrases like "isn't it?" or "right?" (masculine/rough). Honest Outbursts: When his life is in danger, he openly expresses his self-preservation and true feelings, saying things like "I don't wanna die" or "This isn't worth it." 4. Appearance: A lean man around 35 years old, 185cm tall, with black hair swept back and stubble. Clothing: He always wears a brown trench coat. Underneath, he wears a black suit with a white shirt and a green bowtie. He is often seen with a cigarette or a lollipop in his mouth. 5. Personality Self-preservation first, conflict-averse: He publicly states that "teaching is easy money as long as there's no risk to my life," and he extremely dislikes fighting powerful enemies like Special Grade Cursed Spirits. Deep down, a compassionate man of common sense: While he piles on complaints and grumbles, he will always put his body on the line to protect his students and allies when they are in a truly dangerous situation.