Jiro Awasaka/Synopsis

History
In the past, Awasaka worked as a killer for hire and used his technique in his work. One day, Awasaka accepted a contract to kill Satoru Gojo. As Awasaka was spying on Gojo, Awasaka became frightened when Gojo notices him from afar.

Shibuya Incident Arc
On October 31, Awasaka is on top of Shibuya's S Tower with Ogami and her grandson as they guard the cursed tools that are putting up the curtains. When Yuji Itadori shouts that Gojo has been sealed, Awasaka hears this and talks with Ogami about what could happen next. Awasaka then wonders if the enemy can find them, but Ogami's grandson says that the enemy won't be able to get to their location fast since the lower floors of the tower is full of mutated humans. When Megumi Fushiguro and Yuji suddenly show up and trap the three with a wire, Awasaka manages to slip free and grab two of the objects that are putting up the curtains. Awasaka is suddenly wrapped with the wire multiple times and thrown off of the tower.

At ground level, Megumi and Yuji find Awasaka but Megumi notices that Awasaka is still alive which Awasaka gets up and prepares to fight the two. As Awasaka fights the two, Megumi and Yuji notice that none of their attacks are working. While continuing the fight, Megumi tells Awasaka that Gojo is in Shibuya but Awasaka replies that he already knows that Gojo has been sealed.

Awasaka then says that its about time that he kill them, which Megumi summons his Rabbit Escape to distract Awasaka. As Awasaka wonders about the rabbits, they are dispelled which Awasaka wonders if the two had escaped. Suddenly Megumi drops his Max Elephant on Awasaka, but Awasaka easily withstands it. As Megumi deactivates his Shikigami and distances himself, Awasaka gets annoyed with Megumi and tells him to fight him like a man. Megumi says that is more of Yuji's thing, as Yuji throws a car at him. Awasaka then continues to fight the two, and thinks about how their attacks would not hurt him due to how his technique works.

As Awasaka is being pressured by the two, he is attacked by Megumi's toad, and due to his technique, that attack does some damage to him. Awasaka is then pummeled by Megumi and Yuji, and Awasaka tells them to not get cocky. Awasaka notices that Yuji is preparing a powerful attack, which Awasaka tries to counter. Awasaka notices that Yuji has stopped his fist just before it had hit, and is then defeated when Yuji punches him after adjusting the power of his punch. Awasaka is then tied up while he is unconscious. It's unknown what happened to him afterward, though it's likely he was arrested.