Carbon Costume

Suguru Geto (voiced by Takahiro Sakurai and Lex Lang) is one of the primary antagonists of the manga and anime series Jujutsu Kaisen.  Suguru was once a student at Jujutsu Tech alongside Shoko Ieiri and his former partner Satoru Gojo.  Suguru became known as one of the worst curse users after he used his powers to massacre non-sorcerers.  Suguru wears dark blue robes and has long black hair that is partly tied back.  You can find high-quality versions of his uniform for cosplay, though if you are flexible with the appearance and want to save money, you can always mix and match different pieces to recreate the look instead.