The Crimson Skeleton of Mt. Washio
(Int. Episode 1236-1237)
(Washio-san no Guren Dokuro)
October 18, 2025 (Part 2)
6.0% (Part 2)
Sunset (Part 2)
Masatomo Sudo (supervisor)
Asuka Tsubuki
Yui Ushinohama
Miho Tanaka
FALCO Suzuki
1179: Keiko Sasaki
Rikiya Koyama as Kogoro Mouri
Wakana Yamazaki as Ran Mouri
Ryo Horikawa as Heiji Hattori
Yuko Miyamura as Kazuha Toyama
Satsuki Yukino as Momiji Ooka
Daisuke Ono as Muga Iori
Kappei Yamaguchi as Shinichi Kudo
Naoki Tatsuta as Tetsushin
Yoshiyuki Kono as Tontetsu
Ken Takeuchi as Kentetsu
The Crimson Skeleton of Mt. Washio (鷲雄山の紅蓮髑髏 Washio-san no Guren Dokuro) is the 1178th and 1179th episode of the Detective Conan anime.
It adapts the Chapters 1116-1118 from the original manga. The Part 1 was first aired in October 11, 2025 and Part 2 at October 18, 2025.
In this two-parter, Conan, Ran, Kazuha, Heiji and Kogoro goes to Mt.Washio and took shelter from the rain at a nearby shrine. Things get detrimental when Kogoro goes missing and a terrifying scream that leads everyone to witness the legend will-o’-the’-wisp going upstairs to the confessional where the missing monk is found dead.
Cast
Case
Part 1
Conan, Ran, Kogoro, Heiji, and Kazuha are climbing to the top of Mount Washio when it rains. The umbrella Kazuha brought only has enough space for three people, so Kogoro and Heiji end up soaking in the rain. Luckily, Kogoro sees a shrine near the location where they are standing, so they decide to ask for permission to stay. The chief priest agrees to let them stay, and tells the other two monks to welcome them. The visit should be normal, until Conan suggests asking the fourth monks when Heiji’s amulet has been lost by accident, because the fourth monk has been missing for several days after being punished to go to the confessional for smoking. The monks also recall the appearances of the will-o’-the-wisp, which make everyone believe that the missing monk has been devoured by the monster appearing along with the will-o’-the-wisp, the crimson skeleton. Legend says that the crimson skeleton will devour the soul of wrongdoers and leave behind the corpse of victims. Later, Kogoro just finishes using the restroom, and is going back to the group when he sees an iron ball falling down from the stairs leading to the confessional. However, when Kogoro arrives at the top of the stairs, intending to give back the iron ball, he is knocked out by someone. Ran becomes worried because her father has gone for quite a while, then, everyone hears a terrifying scream. Outside the room where the scream originates, everyone witnesses the will-o’-the-wisp going straight to the confessional, leading to the answer of why the fourth monk is missing.Based on the environment around the body, Heiji concludes that the culprit must have been either one out of the three remaining monks.
Meanwhile, Kogoro wakes up in a room, being bound on wrists and arms while also being gagged to avoid making a sound, trying to recall what he saw in the confessional before being knocked out.
Currently, the police could not arrive at the shrine due to rain, so Conan and Heiji decide to ask the three monks for information about someone seeing spirit flames and a body in the woods, which was mentioned earlier in the episode by them. The chief priest recounts: One night around a month ago, a hiker passing by the steps in the woods nearby saw the spirit flame. The hiker fearlessly climbed the stone steps to see if anything was there or not, only to find a burnt corpse in the ground. The corpse belongs to a Buddhist religious art expert who had complained about the Kannon statue at the shrine earlier that faithful day.
Meanwhile, Kazuha and Ran are still looking for Kogoro while calling for his phone. Kogoro notices that his phone is still in his pocket, meaning the culprit must have performed in a hurry, so he takes the chance, trying to contact either Conan or Ran using his legs only. At the same time, Heiji and Conan are still discussing the amulet, which was also found at the scene, and they notice the new stain of it. Conan then receives a message from Kogoro, containing only a photo.
Part 2
People
Resolution
Manga to anime changes
- Some scenes added by the anime:
- Ran saying that they just took a break and will leave Kogoro behind
- More scenes of Conan blushing when Ran tells Kazuha about her dating with Shinichi
- Tetsushin asking if someone lose something
- Heiji wondering if Kogoro ate some weird mushrooms and upset his stomach (refering to the incident in A Cottage Surrounded by Zombies)
- Ran calling Conan after he found a wood shaving
- In the scene where Heiji tries to scare Kazuha about "when the time comes", the anime add an imaginary wolf ear on Heiji.
- In manga, Kogoro found the temple by himself. In anime, Conan is the one who pointed it out first.
- Kentetsu's explanation about the sunset view is expanded compared to manga version. His line about relaxing until evening is also anime addition.
- The direction where Heiji and Conan are going after asking Kazuha about her tablet is reversed compared to manga.
Trivia
- Mount Washio (鷲尾山 Washio-san) is a direct reference to Mount Takao (高尾山 Takao-san), a mountain in the Tokyo region and popular among tourists and locals to view Mount Fuji on the other side.
- The mountain temple Shōgaku-ji (昇楽寺 Shōgaku-ji) is a pun to the name of Conan's publisher, Shōgakukan (小学館), in the same fashion as the temple with the same name but different kanji (昇岳寺 in the previous case instead of 昇楽寺) from files 559-561[1]. The temple itself does not follow the design of the actual temple on Mount Takao, the Takaosan Yakuō-in (高尾山薬王院), which contains the similar looking kanji "薬". Instead, it follows the design of the Zōjō-ji (増上寺), famous temple in Tokyo. In particular, it is a replica of the Ankoku-den (安国殿), a secondary hall of the temple, which also has its famous relic, a statue of a standing Amida Nyōrai (an iteration of Buddha)[2].
- The chastisement room has the same proportions as the storage room in Sandei Temple (山泥寺 Sandei-ji) from files 108-110[N 1].
- The names of the monks are related to iron (鉄 tetsu) and monsters (妖怪 yōkai)[3] :
- Tetsushin (哲進) comes from iron and shen (蜃 shin), a shapeshifting clam monster ;
- Kentetsu (賢哲) comes from iron and Xingtian (刑天 keiten), a headless monster ;
- Tontetsu (頓哲) comes from iron and Taotie (饕餮 tōtetsu), a monster in Chinese mythology ;
- Kantetsu (勘哲) comes from iron ;
- Additionally, Jun Murata (村田 潤) comes from Jun Murata (same kanji), a real-life director for NHK who filmed Gosho Aoyama's behind-the-scenes work for a 2024 documentary film.
- In Part 2, there is a mistake where the layout frame and part of line drawing of are not removed.
Gallery
In other languages
| Language | Title | Translation |
|---|---|---|
 Arabic |
جمجمة جبل واشيو الملتهبة | The Inflamed Skeleton of Mt. Washio |
 French (Subbed) |
Le Crâne écarlate du Mont Washio | The Crimson Skull of Mount Washio |
 German (Subbed) |
Der flammend rote Totenkopf vom Berg Washio | The flaming red skull of Mount Washio |
 Thai |
กระโหลกโลหิตแห่งเขาวาชิโอะ | The Blood Skull of Mount Washio |
Footnotes
Notes
- ^ In a similar fashion, Sandei-ji is named after Shōnen Sunday (週刊少年サンデー Shōnen Sandē), the magazine in which Detective Conan is published before being released in volumes.
References
See also
 Season 30 (2025)
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