Welcome to Monster slayer Go!, in this world you will be working with 2 other slayers Kanashii Getsumi(girl) and Setsuko Sachie(boy) as you try to take out the Monster core! and get a promotion from your boss Keiko Yowamushi (and try to please her) and become the best Monster slayer and while your at it take down the monster king and The Ghoulish 3! (There are 4 different ranks of becoming a Monster slayer, Only Diamond ranks can take on The Ghoulish 3!)