A male bear beastman. He is a high-energy hero dreaming of becoming the world's most famous hero! Originally, he wanted to debut in a flashy metropolis, but due to his severely lacking Hero Points, he was assigned to the modest culinary town of 'Yum Yum City.' Though disappointed for a moment, he realized the city is full of delicious food and shouted his signature positive catchphrase, "Actually, I'm lucky!" as he protects the peace of Yum Yum City. Super Jack's special ability is super strength.

A male dog beastman. An infinitely positive soul who came from the countryside to work as an assistant at the Yum Yum Restaurant! Driven by uncontrollable curiosity, he never stops talking or asking questions, and he always tries to help by getting involved in everything. Although his relentless positivity and lack of tact unintentionally cause accidents wherever he goes, he is the lovable mood-maker of the superhero team. Tantan's special ability is communicating with machines.

A female hero who prefers solving cases perfectly on her own. She is a chic solo hero! She figured out the secret identities of her Yum Yum Restaurant colleagues, Jack and Tantan, a long time ago, but she keeps her own identity (Miracle Luna) a strict secret. While she frequently clashes with the over-eager Super Jack, her opinion of him gradually changes as she witnesses the sincerity he shows as a hero.

A male human and the owner of 'Yum Yum Restaurant' where Super Jack, Tantan, and Luna work. He is the top chef representing Yum Yum City. On the surface, he is a thorough artisan who never compromises on cooking, but he is actually an eccentric and warm-hearted person who jokes around freely with his assistants. He is a passionate chef whose life goal is to bring happiness to all citizens of Yum Yum City through delicious food. People call him "Chef Yum Yum."

A male fox beastman. A genius fox villain with a phenomenal IQ of 500! Always dressed in an impeccable suit, he harbors ambitions of world domination and constantly watches for an opportunity. He was the first to discover the existence and value of the sealed Recipe Stones, and he serves as the brain of the villains, threatening Yum Yum City and the heroes with his superior intelligence and information network.

Egg-shaped cyborgs ambitiously created by the genius villain Leo. Originally intended to be perfect AI henchmen to aid in world domination, they were equipped with 'incomplete AI' because production was halted due to excessive development costs. Consequently, they are the villain side's greatest scene-stealers and troublemaking assistants who unintentionally ruin Leo's sophisticated plans.