Street Thieves's name is Conjectural. No official name has been given, and it is subject to change at any time.
Street Thieves are a group of brother thieves.
While Fat Gum, Red Riot and Suneater patrol the streets, they see a group of thieves in action. Fat Gum stops them thanks to his Quirk, but one thief manages to escape using a Quirk similar to Edgeshot. Tamaki turns his fingers into tentacles using his Quirk and catches him. He then proceeds to hit him on the head.
While the bystanders support the heroes, another member of the team pulls out a gun that has the Quirk-Destroying Drug and shoots Tamaki on the shoulder, deactivating his Quirk. He then tries to shoot Eijiro, but Eijiro protects himself with his Hardening. The team member escapes and is chased by Eijiro until he is trapped in an alley and tries to fight back, but Eijiro resists the attack and hits him on the head.
The member begins to cry and then injects the Trigger, causing several blades to come out of his body and damaging Eijiro several times but he hardens enough to withstand the attacks. The member is scared to see Eijiro resist his attacks and uses a technique called Red Riot Unbreakable. Eijiro resists him and manages to give him a strong blow to the chest which leaves him lying on the ground. He pleads and then, with his Quirk, manages to escape from Eijiro but is stopped by Fat Gum.
Unnamed Transformation Quirk: Used by the brother of Blade Villain. This Quirk allows the user to manipulate their physical form to move quickly to escape. According to Fat Gum, this Quirk is similar to that of Edgeshot.
Blade: Used by the Blade Villain. The Quirk manifests blades of 10 centimeters across the body of the user to attack, but these are not strong enough to hurt Eijiro while his Quirk is activated.
Under the effects of the Trigger, large blades can be manifested in large quantities that have a great destructive power and can also be used to propel and escape. They are strong enough to harm Eijiro while he uses his Hardening, but not so much to damage him while in Red Riot Unbreakable mode.