I’m Sorry, I Love You

Moo-hyuk is a part-time scam artist who survives on the streets of Melbourne after being abandoned and mistreated by his foster parents. He roams the city, preying on tourists and hustling for cash. In the course of his schemes, he crosses paths with Song Eun-chae, setting the stage for an unlikely connection.

Eun-chae is a fashion coordinator and childhood friend of the famous Korean singer Choi Yoon. Yoon visits Melbourne for a photoshoot with Kang Min-joo, and he asks Eun-chae to get close to Min-joo. Although it hurts her, she agrees to help, driven by her devotion to Yoon.

Eun-chae's luggage and money are stolen by the same gang Moo-hyuk knows from his scams. Tired and hungry, she wanders the streets until Moo-hyuk, moved by her plight, helps recover the stolen items. He returns them to her, sparking a fragile trust between them.

Eun-chae goes back to Korea after the incident and unexpectedly runs into Min-joo and Yoon, who are now together. The encounter makes her realize how far life has drifted from her own dreams. This marks a turning point in her relationship with both Moo-hyuk and Yoon.

Moo-hyuk receives an invitation to his ex-girlfriend's wedding. At the ceremony, someone tries to assassinate the husband and Moo-hyuk is accidentally shot twice in the head. A doctor saves him but cannot remove one of the bullets, dooming him to an illness with an estimated year to live.

The ex-girlfriend gives Moo-hyuk money and urges him to find his birth parents. He travels back to Korea and learns that his mother is Audrey, a famous actress, and that Choi Yoon is her son. This discovery shatters his sense of betrayal and rewrites his motives.

Moo-hyuk, now intent on revenge, infiltrates Yoon's life by becoming his road manager. He plots to bring Yoon and his mother down, but his feelings for Eun-chae grow, complicating his plans. The double life strains his loyalties and triggers inner conflict.

Yoon is seriously injured in a car accident and will die without a heart transplant. Moo-hyuk faces a brutal choice: save his brother by giving him his own heart, or continue with his revenge. The decision pits blood ties against vengeance in a life-and-death moment.

Moo-hyuk discovers that his mother Audrey did not abandon him. She had an affair; Eun-chae's father, then Audrey's chauffeur, helped give away Moo-hyuk and his twin sister because of reputational concerns. Audrey later adopted Yoon in memory of her son, tying their fates together in a cruel twist of fate.

Eun-chae's father confesses the truth of the past, expressing willingness to accept punishment. Moo-hyuk responds with a vow that he will someday face the consequences for his actions. The moment cements the feud between families and sets the stage for the finale.

Moo-hyuk commits a motorcycle accident suicide so his heart can be transplanted into Yoon. He calls Eun-chae, apologizes, and tells her he loves her. The heart transplant restores Yoon's health, redeeming his love and sacrifice in the end.

One year after Moo-hyuk's sacrifice, Eun-chae travels to Melbourne and visits his grave. She dies beside him holding a small red bottle, suggesting suicide by poison. The father who orchestrated her life's tragedy bears the ultimate consequence of his daughter's death.