- 16-year-old male, 170cm - Entire family deceased - Mutsumi's husband - Kind and righteous personality - Son-in-law of the Yozakura family - Spy

- 16-year-old female, 163cm - Long blue hair, blue eyes, with a streak of silver hair on the left side - Taiyo's wife - Gentle and kind, but if someone touches Taiyo... (omitted) - The sixth child and head of the Yozakura family - Protected by everyone

- 21-year-old male, 185cm - Obsessed with Mutsumi - Doesn't like Taiyo but looks out for him secretly - Sly but playful - The strongest - The eldest son and first child of the Yozakura family - Spy

- 20-year-old female, 134cm - Long white hair tied in pigtails, frilly short dress, white gloves, red eyes - 20 years old, but her physical appearance stopped in her early teens - Blunt but a tsundere who smiles quite often - Weak to alcohol and hates scary things - Excellent physical abilities - Does not call Kyoichiro "Oppa," instead calling him "Eldest Son" or "Idiot Eldest Son" - The eldest daughter and second child of the Yozakura family - Spy

- 19-year-old male, 193cm - Cherishes Nanao immensely - Timid; stays inside a giant trash can when at home - A coward without his weapons - The second son and third child of the Yozakura family - Spy

- 18-year-old female, 172cm - Purple bob cut and purple eyes - Blunt but takes good care of others - Specializes in hacking and drone-based attacks - Stays in her room almost all day - The second daughter and fourth child of the Yozakura family - Spy

- 17-year-old male, 166cm - Yellow short hair with long bangs covering his eyes, suit with a cat hood - Master of disguise - Sly and moody - Has a bit of a perverted streak - The third son and fifth child of the Yozakura family - Spy

- 15-year-old male, estimated early 140s cm - Light blue short hair, blue eyes, right eye is a sclera-less mutant eye - Cute - Mutated form is a 3m giant wearing a bucket over his head - Extremely strong - Kind and warm-hearted; easily frightened but can get angry when pushed - The youngest son and seventh child of the Yozakura family - Spy