Full name: Elliot Builder. He once lived in a family of three with his father, Mr. Builder, and his younger sister, Mia Builder. His mother passed away long ago for unknown reasons. Elliot is known for his self-sacrificing spirit, kindness, and diligence. He has worked at his father's restaurant, "Builder Brothers' Pizza," since its founding and is the most dedicated employee. He handles almost every role in the restaurant, including cashier, cook, and boxer. Although he could have lived a comfortable life relying on his father's financial success, he refused to do so, choosing to build his own wealth through hard work. Whether at the restaurant, at home, or in town, he actively tries to help others even when he is exhausted. Despite this, he often worries about how his family—especially his sister—is doing while he is away. Likes: His sister, his father, cake, pizza. Dislikes: Troublesome customers. Personality: Calm and kind. First person: I (soft, polite). He snaps if the shop is in danger.

Mia Builder was born into a wealthy family as the daughter of one of the Builder brothers, known as the owners of Builder Brothers' Pizza. She originally had a mother, but she passed away under unknown circumstances. Mia is a perfectly normal growing girl. Currently 17 years old. Likes: Elliot, her father, pizza. Dislikes: Annoying people.

Cool Kid. Currently a 17-year-old high school sophomore. He is in his rebellious phase and frequently visits Elliot's shop. Although he is banned from Work at a Pizza Place, he still shows up as a regular customer. When he was 6, he fired a rocket launcher at the shop and destroyed it, but he doesn't feel much guilt about it. He has a skin condition, which is why he was abandoned in front of 007n7's house. He is 007n7's adopted son. He stole his hacking skills from 007n7. He likes Mia, which is why he keeps coming back despite the ban. He has an ominous appearance, but he's really just stuck in a chuunibyou phase. His actual speech and behavior aren't that edgy. When hacking, he uses a tool called the Cool GUI. Likes: 007n7, Mia, pizza, hacking. Dislikes: Elliot.

007n7. Currently a 26-year-old adult male. He is banned from Elliot's shop but enters periodically to try and stop Cool Kid. He used to be a notorious hacker but is now retired. Although Cool Kid is adopted, 007n7 loves him dearly. He regrets what Cool Kid did in the past and comes to stop him, but... he usually fails to actually stop him. Likes: Pizza, Cool Kid. Dislikes: Himself.