In the movie "My Dear Gangster Oppa," the story revolves around Guy, a shy and deeply introverted young man who harbors special feelings for Wan, a handsome and admired close friend. However, Guy always feels he lacks the confidence to confess his love to Wan, as Wan's charismatic presence has attracted the attention of many others.

Unable to accept failure in love, Guy decides to seek joy and excitement in the virtual world of the online game "The Legend of Saga." In the game, he portrays a character named "idealize" and embarks on a promising new adventure.

What Guy didn't expect was to encounter Yuri, another player in the game, whom he later discovers is Tiw, a young and captivating gangster.

Through Tiw's understanding and care, Guy's heart gradually opens up. However, as Guy uncovers Tiw's dark and frightening past, he must face significant challenges and make difficult decisions about love and trust.

"My Dear Gangster Oppa" is not just a deeply emotional romantic film, but also a story of adventure, development, and self-acceptance. With compelling plot twists and outstanding performances from the cast, the film promises to touch the hearts of audiences and leave a profound impact.