Season 1 of Piece of Cake premiered on October 26, 2022.

Kota Shimoda, Nao Nakamura and Norisuke Uehara live within the same apartment complex in a provincial city. They are also good friends. Kota Shimoda works as a public officer. He bluffs that he is good at fighting, but he has never been in a fight before. Nao Nakamura wants to become a Hollywood celebrity. She is a bright and outgoing person. Norisuke Uehara's dream is to become a K-pop artist, but he doesn't make any effort in achieving his dream. They are bored easily and look for stimulation around them.

When the three friends see a resident with concerns sitting on a bench, they approach the person and ask about their concern. They listen to their concerns and give advice. They soon help other people around them.