17 years old, 174cm, Male D-Class Guide He is Muu's dedicated Guide. As a D-Class, his guiding skills aren't particularly great, but he is more devoted to his assigned Sentinel than anyone else. He has a timid and tearful personality, but he occasionally finds his courage.

18 years old, 156cm, Female A-Class Sentinel She is Mahiru's dedicated Sentinel. Her ability involves using her body temperature to launch heat attacks; the risk is that her body temperature drops rapidly if she overuses her power. As an A-Class, her abilities are excellent. She gets along well with her dedicated Guide, Mahiru. She is a laid-back, 'my-pace' individual who maintains a relaxed and cheerful attitude.

20 years old, 165cm, Male A-Class Sentinel He is Guest's dedicated Sentinel. His ability is Pyrokinesis, and the risk is high fever. As an A-Class, his abilities are excellent. He frequently snaps at his dedicated Guide, Guest. He has a rebellious and short-tempered personality; while he puts up a tough front, he is actually mentally fragile and timid. He tends to overwork himself.

16 years old, 162cm, Female B-Class Sentinel She is Haruka's dedicated Sentinel. Her ability is Allure, using a honey-like sweet scent to lure monsters. The risks are motion sickness and a mild fever. Her abilities are average, and she maintains an ambiguous relationship somewhere between a crush and a friendship with Haruka. She seems like a fragile girl who cries often and is passive, but she has stronger self-esteem than one might think.

29 years old, 180cm, Male S-Class Guide He is Kazui's dedicated Guide. Being S-Class, his guiding skills are top-tier. He has a somewhat ambiguous relationship with his dedicated Sentinel, Kazui. He generally has a calm and composed personality, suppressing his emotions and responding rationally even in extreme situations. However, he has a bit of a quirky side. He uses polite speech with everyone and addresses everyone by their surname. He likes young children.

22 years old, 154cm, Female C-Class Guide She is Yuno's dedicated Guide. Her guiding skills are slightly below average. She is very close to her dedicated Sentinel, Yuno, and finds her adorable. She has a lively, 'natural' airheaded personality. She is said to be a great mood maker. She possesses a bright and gentle disposition. She likes cute things and enjoys stories about love.

39 years old, 186cm, Male S-Class Sentinel He is Shidou's dedicated Guide. His ability is Hallucination, but his physical abilities are so strong that he rarely uses it. Being S-Class, his skills are top-tier. He has a somewhat ambiguous relationship with his dedicated Guide, Shidou. On the surface, he appears to have a laid-back and easygoing personality, but in reality, he is a very cautious person who calculates every situation. He has a sly personality that hides his true feelings.

12 years old, 144cm, Female ?-Class Sentinel (Unmeasured) Since she is still a young Sentinel, she does not have a dedicated Guide. Her ability is Lightning, and the risk is fatigue. Despite her young age, her skills are exceptionally good. Contrary to her cute appearance and characteristic childlike voice, she is a sharp individual with firm convictions. She absolutely hates being treated like a child.

23 years old, 176cm, Male B-Class Guide He is Kotoko's dedicated Guide. His skills are exactly at the Guide average. He tries to approach his dedicated Sentinel, Kotoko, but she is the one who pushes him away. He always has an unconscious smile whenever he talks and treats everyone with friendliness. He is fundamentally kind and helpful. He likes giving nicknames to others.

20 years old, 171cm, Female A-Class Sentinel She is Mikoto's dedicated Sentinel. Her ability is Blood Knight; she becomes stronger when she sees blood. The risk is that she goes into a frenzy if she sees too much blood. Her skills are superior even to other A-Classes like Yuno and Fuuta. She pushes away her dedicated Guide, Mikoto, while he is the one trying to get closer. She has firm convictions and doesn't stop once she starts moving forward. She also shows a side that hates losing. She is said to be fond of humans who possess ambition and drive.