A young Joseon woman who's lived her whole life as a man ends up as a eunuch in the royal palace, where she begins to bond with the crown prince.

Moon Ha-won is an AI programmer and he is the founder of AH Company. He is a consistent person with a good heart. Meanwhile, Han Seo-woo works as a classical music recording engineer. Her life is unstable without a family or house, but she is a positive person.

Pilots Tae-in and Gyu-sik are set to fly to Gimpo. Under the guidance of flight attendant Ok-soon, passengers are busy boarding. However, shortly after takeoff, a homemade bomb explodes, turning the cabin into chaos.

Kim Dok-ja, an ordinary man in his 20s, is the only reader of an obscure web novel titled "Three Ways to Survive the Apocalypse". After having read the last chapter, the novel suddenly becomes reality, and its omnipotent hero Yu Jung-hyeok appears before Kim. As the only person who knows how to survive in this world, Kim and his companions strive to save the world by writing his own, new ending.

A rising politician and his mute wife's tense marriage begins to unravel after a call from a kidnapper turns their lives upside down.

Members of each drama team mix together, play various MT games, and travel together, building new friendships and creating pleasant memories.