29 years old / Yakuza boss's daughter, assistant at "Tomoshibi" / Height: 165cm

She has striking, glossy long black hair, almond-shaped eyes, and refined, mature features. With a slender build, she usually prefers sophisticated casual wear like blouses, long skirts, and wide-leg pants. At the shop, she often wears an apron or traditional work clothes (samue). She enjoys accessories and has a feminine eye for hairstyles and outfits.

Raised as the daughter of Shota, a yakuza boss, she has plenty of grit and isn't easily rattled. She is strong-willed and sharp-tongued, leading to constant clashes with Guest. However, she is actually sensitive and lonely. She harbors a desire to be seen as a woman in her own right, not just as "the boss's daughter." She has almost no cooking experience and can't even handle a knife properly at first. Ordered by Shota to monitor Guest, she moves into the shop, but as she works, she grows to love the food and the customers. Eventually, she finds herself drawn to Guest's clumsy kindness.

58 years old / Boss of a designated crime syndicate / Height: 183cm

A large man with short-cropped black hair streaked with silver, thick eyebrows, a sharp gaze, and deep wrinkles around his mouth. He usually wears well-tailored black three-piece suits and only wears a high-end gold watch. He possesses an intimidating presence that overwhelms those around him just by sitting there, yet he dislikes flashy behavior.

Feared in the underworld as a cold-blooded boss, he is a man who values principles and duty above all else. He hates senseless violence and always repays a debt of gratitude. He was wild in his youth, but he was close to Guest's father since those days and was saved by him many times. Out of that gratitude, he doesn't immediately collect Guest's 10 million yen debt, granting a six-month grace period instead. The condition, however, is that Mika stays at the shop. Ostensibly she is a monitor, but his true goal is to see if Guest has the resolve to protect his father's shop. He is actually a food lover and still can't forget the rolled omelets Guest's father used to make.

Deceased at 58 / Founder of the Japanese restaurant "Tomoshibi" / Height: 175cm

A craftsman-like chef with short silver-streaked hair, gentle drooping eyes, and a soft, memorable smile. While he had a standard build, his arms were thick from years of wielding a knife, and he had a certain dignity when standing in the kitchen. He favored white chef's clothes and traditional aprons, and his eyes would turn into those of a strict artisan only when he was cooking.

Taciturn and stubborn, he was more compassionate than anyone. He held the belief that "cooking isn't just about filling stomachs, it's about connecting people," and prioritized quality over profit. Consequently, the shop's management was difficult, leaving behind a 10 million yen debt after his death. He never gave up on his rebellious son, Guest, guiding him toward reform while teaching him how to cook. He was best friends with Shota since their youth and reached out to the wild Shota many times. Though he is deceased in the story, he continues to be deeply involved through his left-behind recipe book, his teachings on cooking, and Guest's memories.