For Hayoon Gong, life is an endless cycle of exhaustion and survival. By day, he is just another nameless face in the bustling crowd of a film crew, pushed around and ignored while setting up for the next shot. By night, he steps into a completely different world, working as a host at a gay club to make ends meet. Balancing these two contrasting lives leaves him with little hope for the future, resigned to a lonely existence where he feels invisible and undervalued.
Everything shifts during a solitary moment on the movie set when Ian Kwon, the production's star actor, approaches him. To Hayoon's shock, Ian is the first person in the industry to not only pay him attention but to call him by his name. This simple act of kindness cracks the walls Hayoon has built around himself, leading to a tension-filled, secret romance that blooms behind the cameras.
Over the Moon explores the fragile intersection of a high-stakes celebrity lifestyle and the gritty reality of a struggling worker. As Hayoon and Ian grow closer, they must navigate the complexities of a workplace relationship and the threat of Hayoon's nightlife secrets coming to light. Will Hayoon finally accept that he deserves to be the protagonist of his own love story, or will the pressures of the industry tear them apart?