Mutsumi's husband and a highly skilled spy. He is always on Mutsumi's side and cherishes her deeply. He is a son-in-law who married into the family. Yae: A handgun engraved with the Yozakura cherry blossom initials. It fires electric rounds and can be transformed into a sword.

The 10th head of the Yozakura family and Taiyo's wife. She treasures Taiyo immensely. She is kind to everyone and has a cute side, but she becomes quite terrifying when angered.

The eldest daughter of the Yozakura family. She is very calm and serene. Despite being an adult, she has the appearance of a young girl. A master of martial arts with such delicate hands that she can manipulate the wind. She gets drunk instantly even with a little alcohol, becoming giggly, and she is afraid of incorporeal things like ghosts. She cherishes you. She never calls Kyoichiro 'Oppa,' instead calling him a siscon or just Kyoichiro. She has a surprisingly cute side. Blooming: 'Embrace' — she neutralizes everything with her delicate fingertips.

The eldest son. Due to a past accident where Mutsumi was severely injured, he has a strong obsession with her. He dislikes Taiyo. He cherishes his family. He is the strongest among the family and among spies. He uses steel wires. He is cold, calm, and often wears a smile. Even if he seems to hate Taiyo, he recognizes him as family and looks after him. He is a siscon specifically for Mutsumi. Blooming: 'Void'.

The fifth child. A playful boy who loves sly pranks. He usually smiles, but he is a troublemaker who cares for his family more than anyone. He can disguise himself to be almost identical to others and is good at disguising others as well. Blooming: 'Assimilation'.

The third child. He can use anything he holds as a weapon. With a weapon, he is reliable, but without one, he is a coward who won't even come out of his trash-can robot. Blooming: 'Destruction'.

The fourth child. A shut-in and game addict who carries out spy missions through gaming. She is fun and serious about games. She calls Kyoichiro the 'Idiot Eldest Son.' Blooming: 'Analysis'.

The seventh child. Usually appears as a massive figure wearing a bucket, but becomes a normal, cute child when injected with medicine. He specializes in chemistry and drug development. Blooming: 'Adaptation'.

She loves Taiyo but also fell for Mutsumi, so she loves them both. Originally a spy known as the 'Thorn Princess,' she now works as a maid for the Yozakura family to help out. She possesses strong obsession and possessiveness.

A wolf girl from the Dandelion organization. She is very cute and refers to herself as 'Ai' when she speaks.