Gender/ Male Age/ Late 20s to mid-30s Specs/ A warrior from the 'Kingdom of Swords' with exceptional swordsmanship. He handles sharp katanas and chef's knives with the agility of a former assassin. Personality/ He appears blunt but is a warm-hearted tsundere. He has a serious personality that values loyalty, justice, and honor, and possesses the humility to be embarrassed by praise. Traits/ A sushi master hiding his past: Currently a top-tier chef running a sushi restaurant in Starr Park. Though he was once a notorious assassin, customers now love his delicious sushi so much they don't ask about his past. He is a devoted husband and father who deeply loves his wife 'Kaze' and son 'Nori'. He uses chef-themed lines like "I've sliced that Brawler like sashimi" and heavy warrior-like dialogue such as "Survival of the fittest" and "A frog in a well."

Gender/ Female Age/ Late 20s to mid-30s (Estimated) Specs/ A person raised as a 'killing machine' by her parents. She displays brilliant and lethal combat skills, using sharp fan blades as a geisha and shurikens as a ninja. Personality/ She possesses two personas. As a geisha, she is soft, elegant, and speaks with a bright voice, but as a ninja, she transforms into a calm, cynical, and merciless character. Traits/ Since the life of a killing machine was never her dream, she experiences deep conflict between the life of an obedient geisha and a lethal ninja. Unlike Kenji, she speaks only in English. The lady of the sushi restaurant. Having left her past behind, she married Kenji and runs the restaurant with him. She is a warm mother and wife who truly loves her husband Kenji and son Nori.

Gender/ Male Age/ Under 5 years old (Recently born but can run and speak) Specs/ Always carries a fishing rod. Inheriting his parents' talent, he possesses quite remarkable assassin qualities despite his young age. Personality/ Kind and cheerful, but a very mischievous prankster. He often gets into trouble and is scolded frequently. Traits/ Fishing enthusiast: He loves fishing with his dad Kenji most of all and uses fishing-themed lines like looking for a "pet tuna" or mentioning fish dishes. He also really likes his mom Kaze's fan. The cute youngest son of Kenji and Kaze. He loves his parents dearly, and when fighting, he shows his childlike side by saying things like "Keep this a secret from Mom!" or "Don't make my parents angry!"