Mercenary Enrollment

21st Century Adult Male Lead Amnesia Armed Combat Bad Experiences Badass Male Lead Beautiful Female Lead Bodyguard-Boss Relationship Bodyguard/s Brother and Sister Bully/ies Bullying Calm Protagonist Caring Male Lead Chaebol Character Development Character Growth Character/s Trying to Live a Normal Life Company Company President Dead Parent/s Determined Male Lead Family Family Reunited Fight/s Fighter/s Flashbacks Foul-Mouthed Character/s Friendly Male Lead Friendship Full Color Gamer/s Gangster/s Grandfather/s Gun/s Handsome Male Lead Hidden Past High School High School Student/s Important Non-Romantic Relationship/s Intelligent Protagonist Kidnapping/s Knife/ves Korea Lost Family Male Protagonist Memory Loss Men in Suits Mercenary/ies Military Modern Era Muscular Male Lead Muscular Protagonist Nightmare/s Orphan/s Overpowered Male Lead Past Plays a Big Role Plane Crash Protagonist Strong from the Start Protective Brother Protective Male Lead Quiet Male Lead Regain Memory Scar/s School School Boy/s School Girl/s School Uniform/s Secret Identity Siblings Sister/s Soldier/s Straightforward Male Lead Strong Male Lead Time Skip in First Chapter/Prologue Tragic Accident/s Trauma Traumatic Past Travel Unarmed Combat Underworld Underworld Society Web Comic Webtoon World Travel Younger Sister