Eisaku Donzawa

* Anime
* Manga

**Eisaku Donzawa** (丼沢 英作, *Donzawa Eisaku*) is the astronomy chairman.

## Biography

### Island Observatory Murder Case

Donzawa scolded Minami Unno because she brought him coffee in a mug with "weird" stars on them. He later sees her again in the observation dome with Takumi Jumonji, Totomaru Isshiki, and Ron Kamonohashi; Donzawa went there after he heard ruckus.

When Totomaru sees Donzawa's hair, he accidentally remarks aloud that it is "incredible." Donzawa agrees and tells him that he wears his hair like that so that it will not get in his way when he looks through a telescope. He also notes that there seems to be some "impure" guests present. Astronomical photographer Kayoko Onodera then arrives and explains that he means people who are not astronomy fans and who, thus, cannot appreciate the the meteor shower's value. BLUE instructor John Grizzly joins their group shortly afterward.

Jumonji introduces Grizzly and Totomaru to everyone as they are here to act as bodyguards to keep the party safe. Ron asks why someone like Grizzly has been invited to be a bodyguard, and Onodera and Grizzly inform him about the tragic and unsolved Nandan Observatory Murder Case.

Jumonji reveals that the director back then, who also died in the tragedy, was his father and he is holding the viewing party to overcome that tragedy because this is what his father would have wanted. Afterward, Princess Ori arrives as well, and Ron opens the dome, setting the telescope in motion, which excites Donzawa. Jumonji then tells everyone that the party will be held on the roof at 11 p.m.

At the party, Donzawa and Onodera talk to Ron about astronomy and are thoroughly impressed by his vast knowledge.
 They later watch him hula hoop after having eaten to much. Ron says this was his presentation of a planet's orbit around the sun. Donzawa claps and says it was superb. Ron then heads to bed early; Donzawa likes that he said he will watch the meteor shower in his dreams.

Donzawa later watches the meteor shower with the others, sans Ron. Two hours later, he tells Toto that Onodera left after the meteor shower to get some photography equipment. Then, the observation dome opens and moves and a gunshot is heard from inside it. Donzawa hurries with the others to the dome's entrance. Because it is locked, Jumonji, Grizzly, and Toto have to break down the door.

Jumonji, Totomaru, and Grizzly inspect the room and find Onodera and Ron lying unconscious on the ground, the telescope between them. There is also a gun next to Ron. Everyone rushes to the bodies. Grizzly confirms Onodera's death, and Unno screams at the sight of the corpse. When Donzawa points out the gun next to Ron, Unno remarks that she knew he was suspicious; after all, only a weirdo would request and eat a brown sugar dish. Ron wakes up from his sleep to defeat his dietary customs. He adds that he does not remember anything after leaving the party and lying down in his bed.

While Donzwa, Unno, Jumonji, and Princess Ori stay by the door, Grizzly and Toto inspect Onodera's corpse. Grizzly says she died right before she was found; she was shot in the back, and the bullet pierced her heart. He confiscates the gun, and Donzawa points out that it is the model gun from the lobby.

Then, Toto and Grizzly examine the dome. All the lights have been shot out. There is no ladder which means nobody escaped through the ceiling; the motion detector was also not set off. The exhaust port is too small for anyone to escape through. Because there are no other exists, Grizzly declares that Ron must have been the murderer. The door was locked too after all. Surprised, Ron sits up and then finds the master key in his pocket. Grizzly orders Toto to arrest Ron and to retrieve his shoes beforehand so that he does not injure himself on the glass shards on the ground. While Totomaru is gone to quickly fetch Ron's boots, Unno asks Jumonji why he invited a murderer. He replies that Totomaru brought him along and that it is not his fault. Grizzly then asks Jumonji to contact the mainland police. Meanwhile, Donzawa holds his hands and declares that Nandan Observatory must be cursed.

At some point, Donzawa was interviewed by Grizzly. He told him that he was only briefly in the restroom around midnight. Otherwise, he was always on the roof.

Later that night, Donzawa hears a gunshot and runs out of the building with Jumonji; Donzawa holds a umbrella, Jumonji does not. They find Toto and Ron by Grizzly's corpse. Ron very quickly updates them on the situation. Afterward, everyone gathers in the lobby where Toto informs everyone about the results of his examination of the roof: He found the same gun that was used to kill Onodera there; the culprit must have stolen it from Grizzly. Toto then verifies everyone's alibis: Jumonji was in his room and ran outside when he heard the gunshot. Donzawa was in the first-floor bathroom and met Jumonji in the lobby on his way to find the gunshot's source. Neither Unno nor Princess Ori heard the gunshot; Unno was sleeping with earplugs in, and Ori wore headphones to check the sound of her performance recording. Thus, none of them have an alibi. Ron then declares to everyone that the culprit angered the one person they should not have.

Later, Totomaru gathers everyone in the observation dome to arrest the killer. It is the one person who immediately knew to run outside and not go up the roof from where the gunshot had come; the one who ran out of the building without an umbrella to conceal his already-soaked state: Jumonji.

Jumonji also pretended that he needed to go to his room during the party. He looked for Onodera, then attacked and drugged her before he carried her to the observation dome. Afterward, he placed Ron, whose food he had laced with sleeping medicine beforehand, next to the telescope. Jumonji put the master key in Ron's pocket and glued the dome's door shut. Onodera, who was given a lighter dose of the drug, woke up before Ron. Because it was pitch-black, she tried to turn on the light, but Jumonji had destroyed the lamps earlier. She then went to the door; however, because it was glued closed, she thought it was locked, and when she turned the key, she locked the door. With the lights broken and the door locked, Onodera went to open the dome's ceiling. As a result, the telescope turned and triggered a mechanism that set off a gun which then shot her in the back and immediately killed her.

The gun had been positioned in an air vent, and Jumonji had put the model gun from the lobby next to Ron. When everyone's attention was on Onodera's corpse, Jumonji retrieved the real gun from the vent. He later used it to kill Grizzly.

Jumonji wants to know if Totomaru has any proof that he is the murderer. Totomaru counters this with a question of his own: Before they broke open the dome's door, Jumonji told Unno to get flashlights. How did he know about the dome's broken lights? After all, only the killer could know this.

Jumonji confesses and reveals that Onodera was, in fact, a journalist who investigated unsolved crimes. She wanted to find out the truth about the tragedy from ten years ago and had been coming to the observatory for this reason for years, and when she left the viewing party, she actually searched Jumonji's room for clues. Because Jumonji had been hiding the truth for all those years and did not want Onodera to learn and expose it, he murdered her. He killed Grizzly because he kept on investigating although the initial situation incriminated Ron until he figured out that Jumonji is the true culprit.

His confession triggers Ron's Kill on Sight ability. Ron holds out the gun to him and tries to pressure him to take it and shoot himself, but Toto tackles Ron before the ability takes hold of Jumonji. Jumonji then takes out a cyanide capsule and swallows it. Ron shakes him and demands to know why the trap was for him and if he anticipated his presence here. Jumonji tells him that he did and that no matter how much he struggles, he will never escape "his" grasp. Ron wants to know what he means, but Jumonji only says that the sun is rising before he "dies."

Afterward, Totomaru calls the local police again and then informs everyone that they are on the way; this relieves Donzawa.

## Etymology

* The name "Eisaku" means "excellent, fine" (英, *ei*) and "work, production, cultivation, tillage" (作, *saku*).
* His surname "Donzawa" means "bowl/porcelain bowl/bowl of rice with food on top" (丼, *don*) and "marsh" (沢, *sawa*/*zawa*).

## References

1. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 9, pages 12-23
2. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 9, pages 27-35
3. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 10, pages 3-16
4. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 11, pages 5-6
5. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 12, pages 6-14
6. ↑ *Ron Kamonohashi: Deranged Detective* manga; Chapter 13, pages 3-20