Detective Ultimate Collab

Diamond

Cat-Eye

Citrine

Tora Tsuyonabe

Himawari Tsuyonabe

Abe Sakurai

Shōgo Tsukigami

Suika Tetsu

Yuki Kimura

Ichirō Nakayama

Haru Nonaka

Nami Watanabe

Dame Suzuki

Jirō Nakayama

Detective Ultimate Collab (探偵究極合作) is the fifth Detective Quirky Story. Following the previous four, it circulates the four detective together, solving the case as a team. It's main theme song is The Answer.

"Are you sure?"*This article might contain spoilers for certain manga or games. Viewer discretion is advised.*
There is in fact five detectives all along. With Citrine joining the fray, the case was solved thanks to her. She didn't get the title as the smartest sister among Candy's family for no reason. "This is the end of the spoiler. "*You viewed it! This is a spoiler and now you are spoiled! Even though I warned you!*

## Characters

### Protagonists

* Astrama
* Pearl
* Diamond
* Cat-Eye
* Citrine

### Supporting Characters

* Tora Tsuyonabe
* Himawari Tsuyonabe
* Abe Sakurai
* Suika Tetsu
* Yuki Kimura
* Ichirō Nakayama
* Haru Nonaka
* Nami Watanabe
* Dame Suzuki
* Jirō Nakayama

 Diamond (9)
 Member of Design Club and Student of Yūmeijin High SchoolAbe Sakurai (14)
 Member of Design Club and Student of Yūmeijin High SchoolSuika Tetsu (13)
 Teacher Advisor of Design Club and Teacher of Yūmeijin High SchoolIchirō Nakayama (31)
 Member of Design Club and Student of Yūmeijin High SchoolNami Watanabe (13)

## First Case

### First Case

Tora Tsuyonabe was seen walking on the corridor of the 1st Floor. However, he was stabbed to death. His body was later found by his niece, Himawari Tsuyonabe.

## Second Case

### Second Case

Sakurai Abe shouted and was seen dead. Blood is oozing from his head. He was killed almost immediately after a heavy object hit his head.

## Third Case

### Third Case

When Pearl and Cat-Eye are investigating the death of Tora Tsuyonabe, Pearl has pressed a black button, triggering a big drill, that might kill Cat-Eye if she did not react fast.

## Fourth Case

### Location

Meat Grinding Site of Yūmeijin Design Factory

### Fourth Case

Haru Nonaka was apparently bounced by a big string, and her body turned as she fell leg-first in a meat grinder. Despite the efforts of the detectives to save her, she was killed by a massive trauma and she ultimately became a meat herself.

## Fifth Case

### Location

Meat Grinding Site of Yūmeijin Design Factory

### Fifth Case

Pearl was investigating Haru Nonaka's death near the meat grinder while she triggered a button that bounced her. If it wasn't for her pearl body that made her bounced on the grinder, she would be dead.

## Sixth Case

### Case Type

Tricked
Attempted Murder (Initially)

### Sixth Case

Shōgo Tsukigami shouted and was found fainted. She woke up later. Although she said she was attacked by some entity, it was proved a trick by Shōgo herself.

## Seventh Case

### Seventh Case

Dame Suzuki was found dead, with his body ultimately getting beaten a lot. His head and top part of his body was in a drain, with his legs outside the drain.

## Eighth Case

### Eighth Case

Yuki Kimura was walking through the stairways while she was attacked. She fainted and was found slightly injured in the head. The murderer ran away as the others came immediately after Yuki's attack, thus preventing the murderer from killing Yuki.

## Ninth Case

### Victim

Pearl/Detective Ultimate CollabCitrine/Detective Ultimate Collab

### Location

Meat Grinding Site of Yūmeijin Design Factory

### Ninth Case

Pearl triggered the button that bounced her again. Citrine then fell on Pearl.

## Conclusion

The culprit was Shōgo Tsukigami. She was often bullied by Abe Sakurai, Dame Suzuki and Yuki Kimura. Since Shōgo was too weak to protect herself, she followed Haru Nonaka and told principal Tora Tsuyonabe about it. However, Tora who was suffering from a mental illness scolded Shōgo and Haru did not help Shōgo to talk for her. So, Shōgo ultimately planned to murder the 5 suspects involved in her bully case.

## Another Death after Conclusion

### Another Death after Conclusion

Shōgo Tsukigami ran towards the roof balcony of the design factory, in an attempt of suicide. Despite the efforts of everyone to stop her, it was too late and Shōgo fell to her death upon hitting the ground. She was only 13 years old.