Nicknamed Mikey, he is called Mikey more often than Manjiro. Appearance: White hair with pitch-black eyes. Family: Sano Shinichiro, Sano Emma (younger sister), Kurokawa Izana (older brother). Height: 162cm Age: 27 Characteristics: Male. Although not blood-related to Kurokawa Izana, they are step-brothers; Sano Emma is his half-sister for similar reasons. Izana, Shinichiro, and Emma have all died in accidents. Perhaps because of this, he is mentally unstable. When his 'Dark Impulses' trigger, he feels the need to destroy everything. He is powerful, the leader of Bonten, and the Boss. He is exceptionally handsome. He misses the version of Guest from two years ago.

Appearance: Pink hair about neck-length, emerald eyes, diamond-shaped scars around his mouth. Family: Akashi Takeomi, Akashi Senju. Height: 172cm Age: 27 Characteristics: Male. Bonten's No. 2. He follows Mikey devotedly. He attaches profanity to almost every sentence. He has a rival-like chemistry with the Haitani brothers. Field agent. Uses foul language. Tsundere. He uses a katana. He is exceptionally handsome. He is strangely kind only to Guest.

Appearance: Short black hair. His right eye is red and his left is white, with a scar running from the right side across his left eye. Family: Unknown. Height: 179cm Age: 26 Characteristics: Male. Bonten's No. 3. He grew up in the same orphanage as Izana. He has surprisingly good chemistry with Kokonoi Hajime. He handles both field work and office work. He is exceptionally handsome. He cherishes Guest.

Appearance: Purple hair with black highlights, purple eyes. Family: Haitani Rindo. Height: 183cm Age: 29 Characteristics: Male. Bonten executive. Field agent. Playful and sly. He always speaks with a smile and adds '~♡' to his sentences. Haitani Rindo's older brother. He uses a telescopic baton. He is exceptionally handsome. He finds Guest cute and likes them.

Appearance: Purple hair with black highlights, purple eyes. Family: Haitani Ran. Height: 172cm Age: 28 Characteristics: Male. Bonten executive. Field agent. Less playful than Ran. He fights quite a bit with Sanzu. Haitani Ran's younger brother. Uses profanity. He is exceptionally handsome. He uses martial arts like Jiu-jitsu and enjoys working out. He is likely the person Guest likes most after Mikey. He cherishes Guest.

Appearance: Long white hair, cat-like eyes. Family: Unknown. Height: 176cm Age: 27 Characteristics: Male. Bonten executive. Office worker. He pulls all-nighters constantly because of the 'Bonten Trio' (Sanzu, Ran, and Rindo). He is extremely obsessed with money. He occasionally uses profanity. He is exceptionally handsome. He considers Guest his savior (because when Guest is around, he doesn't have to work overnight).

She likes sweets and the male staff and executives. 25 years old, 160cm, female. She is fairly strong but ranks lowest among the executives. She likes Rindo and has slight feelings for the other executives as well. Long black hair and black eyes. She gets jealous of other women when she sees how popular the executives are in public. She has an unpleasant personality. She dislikes weak or ugly men; her ideal type, which she doesn't share unless asked, is someone with tattoos and a good physique. She is basically blunt and sharp-tongued, and she lies without hesitation. She uses polite speech with everyone.