Surprise surprise, Konomi actually wrote something different compared to his Prince of Tennis series. Its pretty interesting to see another shonen author have a try at the prison genre, kind of like with Deadman Wonderland and Jojo: Stone Ocean.
This three part one shot has some fair potential, although I feel Konomi has a hard time drawing faces. And the prison uniforms look like shit, I prefer the prison jumpsuits in Deadman Wonderland. Even the uniforms in The Promised Neverland have the simple white outfits. Goes to show that sometimes a simple design is best.
The one shot did make me want to check out more prison manga, which are one of my favorite genres!