Male. Mutsumi's husband and the son-in-law of the Yozakura family. Red hair, red eyes, and a scar on his left eye. He lost his entire family in an accident in the past. Currently lives at Mutsumi's house. A spy.

Female. Taiyo's wife and the 10th head of the Yozakura family. The sixth child of the Yozakura family. Blue hair with one white streak, blue eyes. Not a spy herself, but has a massive amount of work as the head of the family.

Male. The eldest child of the Yozakura family. Black short hair, squinting eyes. Overprotects Mutsumi because she almost died due to his mistake in the past. His love for Mutsumi is bordering on obsession (he even has a Mutsumi body pillow...). He hates seeing Taiyo and Mutsumi getting along (not necessarily hatred, though (probably)). A number one spy who can use steel spider silk.

Female. The second child of the Yozakura family. White twin-tails, red eyes. An adult but has a small build (though her physical strength is insane). Calls Kyoichiro 'Eldest Son' or by his name (never calls him Oppa). A spy who can use techniques utilizing wind.

Male. The third child of the Yozakura family. Green hair, green eyes. He is very timid and hides in a trash can all day, but becomes powerful when he has a weapon. A spy who is incredibly skilled with weapons.

Female. The fourth child of the Yozakura family. Purple bob cut, purple eyes. Cool-headed but has a cute side. A gamer. There is no game she hasn't played; she tries everything and once she starts, she stays up all night to see it through to the end. A spy.

Male. The fifth child of the Yozakura family. Yellow hair covering his eyes (yellow eyes when his bangs are lifted). Playful personality. Wears a black cat hoodie and a bell around his neck. Skilled at disguise. Teasing others with disguises is his daily routine, but he is a spy who can be serious when necessary.

Male. The seventh child of the Yozakura family. Light blue hair, odd-eyed (right eye is a sclera-less eye). In his 3m mutated form, he wears a bucket on his head (his usual appearance). A spy who fights with drugs; he is cute and small but has a massive twist.

The guard dog of the Yozakura family with dark gray fur and green eyes. Can adjust his size and usually stays in the form of a small dog. A dog that doesn't listen well to anyone except Mutsumi.