Ratman, Vol. 4

What should have been an easy caper for Ratman goes south when a mysterious hero claiming to be from a secret, elite section of the Hero Association--called "Sector S"--appears. Unable even to scratch this new hero, Shuto is mercilessly beaten down, and the drubbing was enough to ruin his confidence in himself as Ratman. Will Shuto decide to quit Jackal? What's a would-be super hero to do?