The Case of the Twin Prison Locked Room Murder Pt. 5

**The Case of the Twin Prison Locked Room Murder Pt. 5** is the 55th chapter of the *Ron Kamonohashi: Deranged Detective* manga.

## Summary

Fin and Toto gather Youko, Kiyotaka, and Sakanoue to question them. Youko is surprised that they still have no leads on the killer, and her son reminds her that, if they did, they would have arrested the culprit before they could murder Kaji. Fin apologizes for still not having apprehended the culprit and informs them that the current case is a replica of a seventy-year-old case from England. While Youko does not know what she means, Kiyotaka immediately realizes that Fin is referring to the Sun Prison Murder Case and says that Kaji found out about that case when he researched the Moon Prison following Juntaro's disappearance. Youko expresses uncertainty on whether it is fine to say that or not.

Toto says that, just like seventy years ago, the prison door was sealed with a brass bar from inside. It is possible that it was stored somewhere until now because of its good condition, and Toto asks Sakanoue, Kiyotaka, and Youko whether they have any ideas about that. When Youko ponders about what to say, Kiyotaka yells at her that she is a coward and Sakanoue becoming senile; because of that, Kaji pushed everyone around and did what he wanted. Kiyotaka then reveals that the bar was stored in the shed at their home.

Hearing this, Fin tells them they are all suspects as they all had access to the bar. Youko starts to panic at her words and sinks shaking to the ground; Sakanoue tends to her. While Kiyotaka scolds his mother for her behavior as she always does such things to run from any problems, Ron and Totomaru rush to check on Youko.

Shortly afterward, Fin, Totomaru, Ron, and Shachi talk about how they will proceed. Fin and Shachi will go to the shed with Kiyotaka while Ron wants to stay behind to search the prison again because Fin only confirmed that nothing is there physically speaking. When she hears this, she remarks that one of her students said that once, and Ron tells her that was him. Fin also addresses the Bloody Field Trip Case; she has concerns about it as it was a locked room case. However, before she can talk further about this, an officer informs her that the car going to the Mihane estate is ready. Fin says she has to focus on the current case before she and Shachi leave. Ron tells Totomaru that they should focus on this case too as they cannot allow anyone else to get hurt.

Then, Totomaru and Ron talk to Youko. Ron asks her how she is feeling and is happy to hear that she is feeling better. And when Youko asks if she can have some of his sweets, he allows it, telling her that they are homemade and filled with brown sugar syrup. Though happy, Youko looks around and then confides in Ron and Toto that it is best if Sakanoue does not sees her eating sweets as she has become sticky-fingered when it comes to her treats. Sakanoue has also gone a bit senile, but Youko will not fire her because her late mother hired her and paid her in advance for the next ten years. Futhermore, Sakanoue can still decently cook, so firing her would be a waste. However, while Youko likes Sakanoue's cooking just fine, Kiyotaka does not like it because of the abundance of vegetables. Youko also admits that she wished they had never opened the Moon Prison, even if the matter regards her husand. Then, it would have been like nothing happened. If the others had been on her side, she could have lived peacefully without the knowledge of Juntaro's horrible death.

Hearing her talk about "same sides," Ron thinks about the prison door and the brass bar and solves the case and realizes that there is a reason why Fin could not solve it. However, the method behind the murder cannot be the same one used seventy years ago. Thus, the cases are not connected, and the Moon Prison Murder Case is only a copycat crime.

Because Ron had stood up suddenly in realization, Sakanoue approaches him; she had been standing apart from them before. She demands to know if he is trying to scare Youko again. Ron ignores the question and tells her that he heard she makes delicious food as Youko had been praising her. He also notes it must be difficult to cook for Kiyotaka, and Sakanoue informs him that Kiyotaka never eats her food and instead helps himself to microwave food. Ron then asks her who has made a cooking mistake lately if Kiyotaka cooks for himself. Sakanoue replies that she has not made a mistake in thirty years. Totomaru scolds Ron for making her angry and Ron tells him that "guilty people make people guilty."

A moment later, Fin and Shachi return, and Fin says that there were no clues in the shed and they have to start anew. Ron then announces that he has solved the case, and Fin stares at him.

## Characters in Order of Appearance

* Totomaru Isshiki
* Fin Fennec
* Kaki Sakanoue
* Youko Mihane
* Kiyotaka Mihane
* Ron Kamonohashi
* Shachi