Set in the bustling city of Seoul, "No Regret" follows the journey of a young man named Su-min as he navigates the complexities of love, ambition, and self-discovery. Working as a household assistant for a wealthy family, Su-min finds himself drawn to Ja-hee, a mysterious and alluring young man from a different social stratum. As their forbidden relationship blossoms, Su-min is forced to confront his deepest fears and desires, challenging the conventions of society and his own identity. Through a series of unexpected events, Su-min is propelled into a world of passion, betrayal, and sacrifice, where every decision comes with a price. Torn between loyalty and longing, he must make choices that will shape his destiny and determine the course of his life. With its raw emotion and poignant storytelling, "No Regret" is a captivating tale of love and loss, filled with twists and turns that will keep viewers on the edge of their seats until the very end.