Alissa Beaumont

**Alissa Beaumont** (アリッサ・ボーモント, *Arissa Bōmonto*) is a student at BLUE. She is the second-best student of her class, and an honors student.

## Physical description

Alissa has long grey hair and turquoise eyes. She usually wears her BLUE school uniform, a black bow around her neck, and a black headband with gemstones and pink rabbit ears.

## Personality and traits

Alissa is a generally stoic, expressionless person. However, this changes when she loses Udy. According to Spitz Feier, Alissa possesses an "unusual charm" that has made her the "nucleus" of her class.

She sometimes sleeps with her eyes open and a snot bubble coming out of her nose.

## Biography

### Ron Kamonohashi's Homecoming Case

Alissa watches Ron Kamonohashi and Totomaru Isshiki arrive at BLUE from a window, along with Marsh Leipley and Udy Dietner. Not knowing who they are, they decide to deduce their identities. Because Spitz Feier seems so relaxed with the new arrivals, Alissa thinks they must be close friends. When Udy suggests they might be new instructors, Alissa decides to give them a "proper welcome."

Alissa later sleeps through Toto's first lecture. Afterward, Alissa fakes her own murder in a locked room. Ron quickly solves the case though, and Totomaru tells everyone who gathered to hear "his" deduction what happened:

Alissa hid in the storage space under the floor and stuck out her head; the "body" they saw was not hers but a dummy's. She likely planned to make her corpse "disappear" and spook Toto while they went to get the key from the staff room. However, Ron and Toto chose to enter the room from the window ledge. Alissa then threw the dummy's head into the pond, thinking that she could leave the room while they went to inspect the head. Again, her plan was thwarted because Ron still checked out the room. Alissa had used a sheet of false blood for her farce, but when she left her hiding place, the hole in the sheet became visible. She hastily had to pull the sheet under a pillar; this gave her prank away, as Ron noticed that the bloodstain had moved without losing its shape.

Before Toto opens the door, Alissa attempts to escape the room via the ledge. Unfortunately, she does not get far because she became frightened and is now stuck. Toto manages to pull her back into the room right before she slips and falls. Alissa later states that Totomaru's actions made her "hate" him.

The next day, Alissa goes to BLUE with Marsh and Udy. On the way, they run into Ron, Toto, Billie, and Night Bran Jr.. Hutter Horn is already there and waves at them in panic when they arrive. He came to BLUE to talk to Aimee Emmerich about his academic advancement plan, but when he entered her office, he found her collapsed at her table. Immediately, everyone rushes to Aimee's office and discovers that Aimee was shot and a strange video is playing on her laptop.

### Cryptid Serial Murders Case

Ron orders the students to stay back while he examines Aimee's body; with a heavy heart, he confirms her death. Aimee died two or three hours ago, and the bullet passed through her body and is now lodged in her chair. The murder weapon lies on the ground, empty of bullets.

When Toto and Ron are done inspecting the crime scene, Night tells them that Aimee asked him to see her an hour ago. Alissa was also called by Aimee to help move Billie's pets, and Alissa asked Marsh, Udy, and Billie to assist her. Everyone, thus, deduces that whoever killed Aimee must have called them to BLUE, possibly so that they find her body. This means that Aimee's murder is a declaration of war to the students, Ron, and Toto. Alissa and Night are ready to accept the challenge; because both only want to showcase their skills, Toto scolds them.

Then, the academy's guard comes into the office, intending 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. The prospect of investigating a murder case without the police excites Alissa.

Later, everyone gathers in a lecture hall to discuss why they might have been isolated at BLUE and how to proceed. While Ron and Toto check Aimee's laptop, the students separate and wander alone through the school. Alissa and Udy stay together, but Udy later leaves her side to go to the bathroom. When Alissa later hurries to the courtyard and sees Udy's corpse, she promptly faints. The guard then has to carry her to the hidden room under the north building where Marsh believes Billie might be.

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.

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.

While Totomaru and Ron re-examine the crime scene and search the building, Alissa and the others go to the home economics room to make dinner. Right after Ron and Totomaru join them, Hutter arrives too, bringing the food he hid in the classroom. When Toto remarks that he should have told someone if he wanted to go to the classroom, Hutter snaps at him.

Ron inquires why Hutter 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. Hutter hates Toto for that. Upon hearing about Toto's involvement in that case, Alissa and Night also turn against him and leave alongside Chelsea and Hutter.

After Marsh tells them where Alissa could be, they find her crying on the roof. She is heartbroken about Udy's death and does not think she can keep going without her. Ron encourages her to keep going, for her own and Udy's sakes. He then asks her if she can hear the voices of "those who died with regrets"—Aimee and Udy—telling her to catch the culprit; Alissa affirms. His words make her find new vigor and agree to follow Ron and Totomaru back to the home economics room.

Later, after Ron and Totomaru have found everyone but Chelsea, Alissa and the others hurry to the roof where they discover 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 Alissa and Marsh bring Billie—who was found in the locker room earlier—to their classroom so that she can change her clothes, Toto and Ron as well as Hutter, Night, and the guard will investigate the area. They also agree to meet up again in an hour.

An hour later, everyone reassembles in the locker room and shares their findings: Night'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. Night then whisks Toto and Ron away to the rooftop; Toto tells the rest to wait in the dining hall. Because she solved part of the mystery and wanted to consult with Totomaru, Alissa follows them to the roof and overhears that "Kamoo Miele" is, in fact, Ron Kamonohashi. She is shocked by this revelation and believes Ron to be the culprit because of his ties to the M. Family. Alissa ignores Night and Totomaru who try to tell her she was misinformed about Ron and rushes to the others, locking the roof window behind her. Before she reaches the dining hall though, Billie catches her.

Billie ties Alissa up and prepares to collect her blood and kill her, as her death is meant for "Chapter 4: The Immortal Monster Vampire." Night comes to Alissa's rescue and is promptly caught as well. By the time, Ron, Toto, Marsh, and Hutter arrive in the secret tunnels, Billie has drawn a significant amount of blood from Alissa and Night, but has not killed them yet. Billie also tries to kill Alissa and Night with crossbows; Totomaru and Marsh can save them on time though.

Billie is later caught and arrested. Alissa and the other students are then sent to the hospital.

Two days later, Alissa, Night, Hutter, and Marsh are back at BLUE. Just when they talk about how Ron and Totomaru would return to Japan today and that they wish to bid them goodbye, Totomaru and Ron arrive at the school. Excited, they meet up outside the building. Alissa apologizes to Ron for criticizing him; Ron, however, does not hold it against her, stating that it was only natural to be on guard given the limited knowledge she had of him.

After Ron tells Alissa and the other students to take care of BLUE, they part ways. Class begins shortly afterward, and when Alissa and the others begin texting Toto while ignoring their new instructor, he becomes upset and heads back to BLUE to "set them straight."

## Skills and abilities

* **Deductive ability:** As the second-best student of her class, Alissa possesses great deduction skills. She can even hear the voices of "those who died with regrets," a sign that she has the makings of a detective.

## Relationships

### Udy Dietner

Alissa and Udy are best friends. They spend a lot of time together and often eat together on the roof. Believing she was only using Udy "out of convenience," Alissa only realizes how important Udy was to her after she dies. Udy's death devastates Alissa, to the point that she thinks she cannot keep going without her.

## Quotes

* *"There's no point in going back to a world without [Udy].*"

## Trivia

* The MangaPlus translation romanizes her first name as "Alyssa." Akira Amano, however, spells it as "Alissa."

## References

1. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 101, page 7
2. ↑ 2.0 2.1 File:July 2023.png
3. ↑ 3.0 3.1 3.2 3.3 3.4 3.5 *Ron Kamonohashi: Deranged Detective* manga; Chapter 98, page 4
4. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 104, page 9
5. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 106, pages 12-17
6. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 97, pages 14-17
7. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 97, pages 27-29
8. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 98, pages 18-19
9. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 99, pages 6-14
10. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 100, pages 7-17
11. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 101, pages 2-7
12. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 100, page 9
13. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 101, pages 7-19
14. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 102, pages 1-3
15. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 101, pages 20-21
16. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 102, pages 3-9
17. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 102, page 14
18. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 103, page 11
19. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 103, pages 10-11
20. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 103, pages 16-21
21. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 104, pages 2-20
22. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 105, pages 2-6
23. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 105, pages 13-20
24. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 106, pages 12-19
25. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 108, pages 7-17
26. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 109, pages 2-14
27. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 110, page 10
28. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 109, pages 18-19
29. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 110, pages 2-5
30. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 110, pages 16-19
31. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 111, pages 20-21
32. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 112, pages 22-23
33. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 113, pages 2-3
34. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 113, pages 11-15
35. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 113, pages 19-21
36. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 114, pages 3-5
37. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 116, pages 8-15
38. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 116, pages 17-18
39. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 106, pages 16-17
40. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 105, page 4
41. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 106, pages 13-16
42. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 106, page 13