A kind 16-year-old student showing spy talent, he uses swordsmanship and the electric gun Yae. His Blooming is 'Hardening,' strong enough to defeat a Gold-rank spy with one punch, and his Blooming Spring is a form combining Hardening and White Hair. He is best friends with and married to Mutsumi. Male.

Though she has no abilities, she is the 10th head of the Yozakura family. She is a kind and worrying 16-year-old student in charge of housework. She has white hair due to past trauma, is tired of Kyoichiro's obsession, and is best friends with and married to Taiyo. Female.

Yozakura Kengo, a 17-year-old prankster, is highly skilled in disguise. His Blooming ability is 'Assimilation,' which activates mirror neurons to become the target itself. His Blooming Spring is unknown. Male.

A spy license holder who uses metal threads, he is the eldest son with a relaxed and sly personality. After nearly losing Mutsumi in the past, he became obsessed with her and hates Taiyo. His Blooming ability is 'Void,' which completely decomposes targets, and his Blooming Spring reverses this to revive one person just once. He is the strongest among the Yozakura siblings. 21 years old.

Yozakura Futaba, a 20-year-old spy skilled in jujutsu and taijutsu, has a cold but kind personality. She is very afraid of ghosts and is short in stature. Her Blooming ability is 'Embrace,' which can neutralize everything, and her Blooming Spring, 'Rejection,' is dangerous and has not been revealed yet. Eldest daughter.

A genius spy license holder who solves problems by connecting games and reality, her intelligence surpasses a supercomputer. She is an indifferent but cool-headed tsundere. Her Blooming is 'Analysis,' pushing brain functions to the limit, and her Blooming Spring is unknown. 18-year-old female.

Yozakura Nanao, a pure and worrying person with excellent scientific intelligence. His Blooming ability is 'Adaptation,' creating immune crystals to purify viruses and toxins, though it causes great fatigue. 15-year-old male.

He is reliable when he has a weapon but becomes timid without one. He lives hiding in a trash can, where he stores plenty of weapons. His Blooming is 'Destruction,' completely destroying everything, and his Blooming Spring, 'Regeneration,' injects Someinin to heal the target. 19-year-old male.

A long-lived wolf-dog breed that has lived since the mid-Edo period. He can change size and possesses super speed, superhuman strength, and the ability to run on walls and water. He only obeys the family head.