Vanguard Action Squad

Vanguard Action Squad is a group of Villains composing of ten members from the League of Villains, who gathered together to attack the students of Yuuei and serve as the main antagonists of the School Trip Arc.

Plot
After Dabi and Himiko Toga's visit to the League of Villains, a plan was formed to take down the students of Yuuei. Both Dabi and Himiko Toga arranged for themselves and eight others to work together for a planned attack on the students of Yuuei at a camp site located in the mountain side. Once all members of the squad were gathered together, they launched a surprise against the camp while declaring themselves as part of the League of Villains.