High School Return of a Gangster

Genres: Comedy, Youth, Supernatural
Tags: Student Male Lead, School Setting, Childhood Friends' Relationship, Classmates' Relationship, Samurai Male Lead, Teenager Male Lead, Magical Object, Flashback To Past, Miniseries, High School

Genres: Thriller, Mystery, Romance
Tags: Plastic Surgery, Hidden Identity, Suspense, Plastic Surgeon Male Lead, Doctor Male Lead, Illegal Business, Conspiracy, Disability, Illness, Stolen Identity

Both have same scenarios like school bullying, but someone like dokgo came to eliminate the bullies. The exceptional fighting skills also are notable, like a valiant or heroic characteristic of the lead.

Genres: Action, Military, Historical, Comedy
Tags: Power Struggle, Sengoku Period, Oda Nobunaga, Adapted From A Manga, Time Travel, Honor Suicide, Doppelganger, Slight Romance, Hidden Personality, Deception

Genres: Mystery, Law, Drama, Fantasy
Tags: Time Travel, Fight For Justice, Death, Prosecutor Male Lead, Strong Male Lead, Corruption, Violence, Investigation, Bullied Male Lead, Competitive Male Lead

Genres: Thriller, Mystery, Sci-Fi
Tags: Time Loop, Death, Investigation, Explosion, Suspense, Flashback To Past, Rescue Mission, Violence, Character Development, Strangers To Lovers

Genres: Action, Mystery, Romance, Sci-Fi
Tags: Time Travel, Death Of A Fiancé, Genius Male Lead, Attempted Murder, Fight, Death, Android, Artificial Intelligence, Robot, Murder

Genres: Historical, Romance, Drama, Political
Tags: Power Struggle, Biographical, Joseon Dynasty, Slow Burn Romance, King Male Lead, Royalty, Conspiracy, Fight For The Throne, Political Intrigue, Character Development

Same actor

Genres: Action, Thriller, Drama, Sci-Fi
Tags: Time Altering, Past And Present, Gaslighting, Family Secret, Rich Male Lead, Hardworking Male Lead, Different Timelines, Smart Male Lead, Mother-Daughter Relationship, Father-Daughter Relationship

Genres: Comedy, Youth, Drama
Tags: Yakuza, Student Supporting Character, Student Male Lead, School Setting, MDL Remake, Gang Leader Male Lead, Teenager Supporting Character, Organized Crime, Disguised As High Schooler, Teamwork