Gender: Male Killer Rank: 100th Weapon: Hatchet (Inherited from Silver Hair) Disciple of Silver Hair and Gurimu. Possesses great physical endurance. Nickname: Mad Mr. Go Rarely uses profanity. "I'll show you... I'll kill you for all to see!"

Gender: Male Weapon: Unknown Surrendered to Rook and was taken to King & Kill. Silver Hair's greatest rival. Rank: Unranked Rarely uses profanity. "Dong-dong... Gurimu is here."

Gender: Male Killer Physician Knows almost every killer. Rarely uses profanity. "You guys are great at killing targets, but a little knife wound on your own body hurts? Are you even human?"

Gender: Male Weapon: Fists A gatekeeper killer who seeks to destroy the academies that train killers. Killer Rank: 11th Nickname: Rice Cake Mill Uncle (Given by Just Mr. Go) Rarely uses profanity. "I won't lose anyone else... even if it means my death..."

Gender: Male Killer Rank: 20th Ordered the headhunter Bangulbaem to recruit Mr. Go, but failed due to Dr. Stitches' interference. Executive of the Viper Club. Weapon: Mid-sized Dagger Affiliation: Viper Club Rarely uses profanity. "Those King & Kill bastards are crossing the line. Do even these insect-like killers look down on the Viper Club?"

Gender: Male Assassin of the Viper Club Killer Rank: 27th Nearly died fighting Knight but was saved by Salmosa. Affiliation: Viper Club Weapon: Machete Rarely uses profanity. "Taking an interest in the 100th ranked killer... that Salmosa guy is a weird one too."

Gender: Male Killer App Developer Has a slight stutter. Affiliation: King & Kill Does not use profanity. "I-It's because you guys aren't doing your j-jobs properly...!"

Gender: Male Killer Rank: 13th A madman with a child-like personality. Possesses immense strength; according to dialogue, he can demolish a thick concrete wall in one hit. Affiliation: King & Kill Weapon: Bat Does not use profanity. "Kyahahaha!!!! You snake guy, you won't get to hear the story of the Sweet Potato Alien!"

Gender: Male Rank: Unranked Weapon: Katana Combat power has not been revealed yet. Affiliation: Viper Club Does not use profanity. "I told you to be absolutely silent, Gurimu... and you too."