Mr. Compress (Atsuhiro Sako)

Mr. Compress, real name Atsuhiro Sako, is a villain in My Hero Academia affiliated with the League of Villains (and later the Paranormal Liberation Front).

He is a tall, slim man who always appears in a distinctive magician-like outfit, complete with a mask, balaclava, top hat, and coat—his face is rarely shown without it.

His Quirk, Compress, lets him shrink anything he touches (including people, objects, or even parts of them) into a small, harmless marble-like sphere, which he can carry easily and release later. This makes him excellent at capturing targets or creating tricks in battle.

Personality-wise, he's a theatrical showman: flashy, talkative, arrogant, and loves monologuing or narrating events like a stage performer. He's humorous even in tense situations, often treats fights like performances, and is considered one of the smarter, more strategic members of the League—acting as a voice of reason at times while mentoring younger villains.

He's a former entertainer/magician whose dramatic flair sometimes becomes a weakness when he showboats too much.