Leave It to Problem Solver 68!
Blue Archive the Animation - Season 1
DESCRIPTION
The Task Force and Sensei try to solve the problem at hand, but the amount of debt is so huge that they sigh. Unable to come up with a solution, they go into a ramen shop and hit it off with a group of girls who call themselves "Problem Solver 68," a group of outlaws. The next day, however, "Problem Solver 68" begins to attack Abydos High School?!