Birthday: July 21
Height: 178 cm
Blood type: B

Hiromi Nase is the eldest son of the famous “spiritwolders” Nase family and Mitsuki’s elder brother. He is a third year high school student.

It appears that something happened between Hiromi and Akihito in the past, but now they are on such good terms that they can joke around with each other. 

He loves his sister a lot and tries to protect her from harm. Although the siblings may bicker with each other, they always reconcile. He has a huge sister complex.

Due to his barrier powers, he is extremely sensitive to cold, and is almost always seen wearing a muffler or scarf. 

Birthday: November 1
Height: 165 cm
Blood type: AB

A sadistic second-year student and the president of Literary Club. She is a Spirit World Warrior who hails from the prestigious Nase family.

She is with Akihito in order to observe him, but she is in fact very worried about him. She is on good terms with Akihito and is thus able to speak with him in a very frank manner.

Birthday: March 31
Height: 152 cm
Blood type: O

Mirai is a first-year high school student with the ability to manipulate blood, an ability that is unique even in the spirit world. This ability causes her to be isolated, leading her to jump off the roof of the high school until she is saved by Akihito.

Clumsy and a bit aloof, Mirai rarely stands out in school. In fact, she struggles pretty much in life; she has to earn her own money to make ends meet, but her constant fear of actually encountering a youmu prevents her from earning an income from slaying youmu, which most spirit world warriors take on as part of their profession. To make things worse, her hobby of writing blog articles about bonsai is often ridiculed in the Internet.