Why Am I a Killer?!

'Joe', who unexpectedly became an Undercover agent, must complete this mission in order to move to his original goal, an office job. This is an undercover investigation into ‘Wild Dogs’, a vicious killer group under a criminal organization! In order to extract information from the fearsome killers, he disguised himself as a killer and went into hiding, but for some reason, Joe's reputation as a killer grows... A wild, comical undercover investigation!

(Source: Naver Webtoon, translated)