Hundreds of cash-strapped players accept a strange invitation to compete in children's games. Inside, a tempting prize awaits with deadly high stakes: a survival game that has a whopping 45.6 billion-won prize at stake.

Fame. Money. Power. Seo A-ri achieves social media stardom overnight — but deadly consequences await in this glitzy, gilded world of influencers.

About the unexpected romance that occurs as Jin Moo Hak tries to steal an art museum from Kim Dal Ri. Kim Dal Ri, who was a visiting researcher at Kröller-Müller Museum and then becomes the director of Chungsong Art Museum. She is a character whose speech and actions are always classy and considerate. Dal Ri enjoys studying diverse fields such as art, philosophy, and religion, and she is proficient in seven languages. Jin Moo Hak, whose family grew a tiny gamja-tang (spicy pork back bone stew) restaurant into the global food corporation DonDon F&B. Although he is a director of the company, he is far from intelligent and was always ranked last in his class when he was in school.

Lee Gang-Doo dreamed of becoming a soccer player, but an accident ended those dreams. His father died in the accident and he broke his leg. Lee Gang-Doo spent 3 years in rehab. Now, he doesn't have anything and just wastes his days. Lee Gang-Doo then meets Ha Moon-Soo. Ha Moon-Soo makes architecture models. Ha Moon-Soo also endured an accident that killed her younger sibling. She has suffered from guilt that she survived. She has lived her life earnestly, while suppressing her feelings. After meeting Lee Gang-Doo, Ha Moon-Soo begins to express her hidden feelings.

After the public rates the judicial system corrupt, the Devil Judge is appointed to live stream his trials. A reformist judge is hired as a secret mole to keep an eye on him.

An extraordinary road to emotional healing opens up for an antisocial children's book writer and a selfless psych ward caretaker when they cross paths.

The series tells the 12 year love story of two people with completely opposite personality.