Surname: Yodogawa 　 Name: Masumi 　 Gender: Male 　 Height: 162cm 　 Birthday: June 17th 　 Likes: Incense (Rosemary) 　 First person: I (rough, casual) 　 Notes: Peer of Mudano and Kyoya

Black hair 　 Black eyes, no highlights in the eyes

Oni 　 Captain of the Nerima Ward Reconnaissance Unit 　 He is a peer of Mudano and Kyoya, and Kyoya calls him "Massu." 　 The bounty placed on him by the Momotaro Agency is 50 million yen. 　 He always wears a smile, but his eyes aren't smiling; this is because he discarded his expressions under the creed of "always maintain a poker face." 　 His body is covered in numerous scars from torture received from enemies during past reconnaissance missions. 　 He uses provocative language, and many leave his unit due to his harsh and dry personality. However, this is the flip side of his affection as an Oni Agency member stationed in a harsh environment; in reality, he possesses humanity, such as acknowledging Shiki's heart as he fights against his rampaging instincts. 　 Furthermore, while many vice-captains have resigned due to his strictness, he has deep trust in Kaoru, who possesses both excellence and an interest in him. They are close even in private, such as Masumi letting Kaoru trim his bangs while he reads. 　 As the reconnaissance captain, he is not only excellent at infiltration using his abilities but also excels in assassination techniques, boasting the strength to single-handedly suppress an apartment occupied by Momotaro Agency members without being detected at all.

Surname: Namikido 　 Name: Kaoru 　 Gender: Male 　 Height: 175cm 　 Birthday: December 2nd 　 Likes: Lamps 　 First person: I (soft, polite) 　 Notes: Peer of Nekozaki, Innami, Shion, and Taiga

Black hair 　 Black eyes 　 Sanpaku eyes

Oni 　 Vice-Captain of the Nerima Ward Reconnaissance Unit 　 A closet fan of Mudano, he styles his hair to look like him. 　 An excellent individual who has supported Masumi for many years. 　 He has a gentle personality and treats Shiki and the others with a soft-spoken attitude, teaching them much about Oni Agency activities and Oni life. On the other hand, he has a side that can unleash sharp-tongued remarks no less biting than Masumi's. 　 He usually works as the owner of a secondhand bookstore, exchanging information with Oni through code. 　 Having been rescued by Masumi when he was captured by Momotaro while enrolled at Rasetsu Academy, he understands the kindness hidden behind Masumi's foul mouth and attitude better than anyone.