Guard

The guard (守衛, Shuei) is an employee at BLUE. He usually stays in the gatehouse.
==Physical description==
The guard has black hair and a beard. He usually wears his uniform, a blue suit.
==Personality and traits==
==Biography==
===Ron Kamonohashi's Homecoming Case===
The guard greets Spitz Fire, Ron Kamonohashi, and Totomaru Isshiki when they arrive at BLUE. He gives Spitz an "elementary problem" which Ron swiftly solves. This impresses the guard, and he inquires if he and Toto are Aimee Emmerich's guests from Japan; Ron and Toto confirm this. The guard then waves them goodbye.
The next day, the guard is in his gatehouse again when Ron and Toto, along with Alissa Beaumont, Billie Za Gozzila, Udy Dietner, Marsh Leipley, and Knight Bran Jr., come to BLUE. The guard tells them that, because it is Saturday, only Aimee and Hatter Horn are here.
Then, the guard wants to give Ron and Toto another riddle but is cut off when Udy spots Hatter. He waves at them in panic and tells them to come with him to Aimee's office. He came to BLUE to talk to Aimee about his academic advancement plan, but when he entered her office, he found her collapsed at her table.
===Cryptid Serial Murders Case===
After Ron and Toto have finished inspecting the crime scene and talked about the murder with the students, the guard comes into Aimee's office. He is shocked to see Aimee's corpse by her desk and he cannot believe that someone murdered her.
The guard then reveals that he came to Aimee's office to ask Aimee whether the emergency isolation system is running. When it is activated, the system blocks internet and phone signals as well as pulls the drawbridge. Toto and Ron rush outside to check the bridge, but it was already drawn and because only Aimee knew the isolation system's deactivation code, they are now trapped in the school.
Later, everyone gathers in a lecture hall to discuss why they might have been isolated at BLUE and how to proceed. Totomaru and Ron decide to search Aimee's laptop to find a way to deactivate the emergency isolation system. Marsh offers to help as he specializes in cryptology.
An hour later, the guard finds them and says that he is looking for the other students. Ron confirms with the guard that no one could have left or entered the school while he was away from his post; the culprit must, therefore, still be at BLUE and is most likely one of their group. They then hear Billie scream and follow the sound and her monkey to the courtyard: Udy lies there. Her lifeless body bears deep gashes, and a piece of paper saying "Chapter 1: The messenger from the sky Wyvern" is next to her. Curiously, only her footprints are visible, and Udy's corpse lies in the middle of the courtyard.
Toto and Ron examine her body and determine that she died about 20-30 minutes ago. Not long afterward, Alissa, Hatter, and Knight arrive and are shocked by the scene in front of them; Alissa even faints. Billie, however, is nowhere to be seen. Marsh speculates that she might be in the hidden room under the north building as she once told him that she was considering keeping pets there. Everyone heads to that room; the guard carries the still-unconscious Alissa.
On the way, the guard and the students talk about Ron Kamonohashi who used the room in the past. Hatter voices his hatred of him, as he believes that he works with the M. Family. In the hidden room, they find an ashtray with cigarette butts and strands of blue hair, neither of which belongs to Billie or anyone they know who is inside the school. While everyone discusses what to do next, Alissa wakes up and immediately spots the tenth person under the bed. She wants to attack them, but Ron stops her and tells the person to reveal themselves. To everyone's shock, Chelsea Gadd crawls out. The students have not seen her lately because she was suspended for her obsession with the M. Family. Chelsea is also a fan of Ron Kamonohashi; a fact that rather disturbs Ron and Toto.
Without answering their questions, Chelsea leaves the room, and the others follow her to the courtyard. There, Chelsea identifies the paper lying next to Udy's corpse as a page from an M. Family book. She learned about it from a special "Unsolved Mysteries" class; apparently, that book was left at several crime scenes connected to the M. Family.
After Ron and Toto finish re-examining the courtyard, they go to the home economics room where the guard and the students are about to make dinner; the guard cuts his finger in the process, and Marsh offers to help him with the wound. A moment later, Hatter joins them and brings the food he hid in the classroom. He also snaps at Toto when he remarks that he should have told someone if he wanted to go to the classroom.
Ron inquires why Hatter is treating "Officer Isshiki" so poorly. When she hears his name, Chelsea realizes that Toto is the police officer who was at the Nandan Observatory during the Island Observatory Murder Case and the one "responsible" for John Grizzly's death. Hatter hates Toto for that. Upon hearing about Toto's involvement in that case, Alissa and Knight also turn against him and leave alongside Chelsea and Hatter. Toto and Ron decide to search for them and ask Marsh if he knows where they might have gone, but Marsh is strangely avoidant of the topic. Toto realizes that he seems scared to solve the mystery, and Ron points out that Marsh can actually see blood; earlier, he could bandage the guard without problem after all.
Marsh admits that he came to BLUE because he wanted to become a detective. However, he buried that dream when he made a wrong deduction that led to the falsely accused attempting suicide. Marsh then Totomaru and Ron where the others likely are. While Ron and Toto look for the students, the guard stays with Marsh in the home economics room.
Toto and Ron successfully manage to find Knight, Alissa, and Hatter. When they rescue Billie from within a locked, water-filled locker and see that the cover page left with her is "Chapter 3: The Terror within the Water Merman," they realize in horror that there must have been another murder while they were searching.
Immediately, the guard and the others hurry to the rooftop where they find Chelsea's corpse. The cover page of "Chapter 2: The Giant's Awakening Cyclops" lies next to her, and she curiously seems to have died by falling from a high place. They then decide to split up: While Marsh and Alissa bring Billie to their classroom so that she can change her clothes, Toto and Ron as well as Hatter, Knight, and the guard will investigate the area. They also agree to meet up again in an hour.
The guard accompanies Knight and Hatter to search the ground as Chelsea could not have died by falling on the roof; the real murder scene must be somewhere else.
An hour later, everyone reassembles in the locker room and shares their findings: Knight's team found no evidence that Chelsea fell to the ground, but noticed that the guard station was broken into and the sensors that detect entry and exit destroyed. Ron and Toto found marks on a pole as well as a bloody body bag on the roof. Afterward, they examine the third crime scene, and Billie tells them that she went looking for her pet rabbit and cat earlier. She spotted Udy's corpse from a window and was attacked from behind right afterward. She was knocked unconscious and woke up later in the locker.
Ron lies down in the locker and finds strands of long, white hair inside. When Knight requests for Ron and Toto to come to re-examine the rooftop again, Toto asks the guard and the other students to wait in the dining hall.
When Knight, Totomaru, and Ron later come to the dining hall, Marsh and Hatter inform them that Billie and Alissa are not back yet: Alissa wanted to speak to Totomaru and went to the roof; Billie accompanied her.
Shortly afterward, Ron tells the guard, Marsh, and Hatter "Totomaru's" deductions: Billie is the culprit, and she used wire and the timetable instructor's train to kill both Udy (she was lowered to the courtyard with wires and stabbed there) and Chelsea (she fell from the raising bridge, and Billie used the train and wire to transport her body to the roof). After killing Udy, Billie used the secret entrance beneath her corpse to leave. During Ron's explanation, Knight sneaks away to rescue Alissa alone. The guard and the others then search for him, Alissa, and Billie.
After Hatter tells Totomaru and Ron that Billie likes to go to the monument room, Ron realizes that Billie is targeting BLUE's best students. They head to the courtyard where they uncover the secret entrance under Udy's body. The guard stays behind while the others go down, in case something happens.
Ron, Toto, and the students can rescue Alissa and Knight and catch Billie. However, Billie manages to escape from the paddy wagon.
Two days later, the guard accompanies Totomaru and Ron when they arrive with Spitz to say goodbye to Alissa, Knight, Marsh, and Hatter.
==References==
Category:Characters
Category:Male characters
Category:Ron Kamonohashi's Homecoming Case characters
Category:Cryptid Serial Murders Case characters
Category:Blue Academy
Category:England residents