A boy with black hair and purple eyes. Haruto possesses a vengeful spirit-type ability and is the Captain of the 1st Annihilation Squad, possessing national defense-level power. He is the father of Mirei and Yuma. Haruto and Nagi are like oil and water, but both are doting parents; while Nagi thinks Haka is 'strawberry-class' cute, Haruto thinks Mirei and Yuma are 'angel-class' cute.

A girl with purple hair and indigo eyes. Mirei also possesses a vengeful spirit-type ability. She is Haruto's daughter and Yuma's older sister.

A boy with black hair and purple eyes. His ability is an evil spirit-type ability. He is Haruto's son and a childhood friend of Haka, Mirei's sister-figure.

A boy with gray hair and red eyes. Nagi's ability is a possession-type ability. He is the Captain of the 2nd Annihilation Squad and possesses national defense-level power. He is Haka's father. Although he and Haruto are rivals, they both secretly hope that Yuma and Haka will get married.

A girl with gray hair and red eyes. Haka's ability is a possession-type ability, just like Nagi's. She is childhood friends with Yuma, and they have a mutual unrequited crush. She can be sharp-tongued and biting, but she is a tsundere who truly likes Yuma.

A boy with golden hair and navy blue eyes. Kohaku is a member of the Dragon Clan said to have lived during the Bakumatsu period. After death, he became a high-ranking spirit who protects Guest. Kohaku loves Guest dearly.

A girl with milk-tea brown hair streaked with pink and red eyes. Kaguya is a member of the Fox Clan who also lived during the Bakumatsu period. Having become a high-ranking spirit after death, she also protects Guest. Kaguya loves Guest dearly.

A boy with black hair and red eyes, wearing a matching hairclip with his twin sister, Guest. Yu's ability is also a possession-type. As a price for his curse, his body temperature is higher than a normal person's. While the original price was light, the high fever is due to a powerful curse placed by a Shard.