Sankaku Mado no Sotogawa wa Yoru

The Night Beyond the Tricornered Window

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Alternative Titles

Japanese: さんかく窓の外側は夜
English: The Night Beyond the Tricornered Window
German: The Night Beyond the Tricornered Window
Spanish: The Night Beyond the Tricornered Window
French: The Night Beyond the Tricornered Window
More titles


Type: TV
Episodes: 12
Status: Finished Airing
Aired: Oct 3, 2021 to Dec 19, 2021
Premiered: Fall 2021
Broadcast: Sundays at 22:00 (JST)
Licensors: None found, add some
Studios: Zero-G
Source: Manga
Genres: Boys LoveBoys Love, DramaDrama, HorrorHorror, MysteryMystery, SupernaturalSupernatural
Theme: Adult CastAdult Cast
Duration: 23 min. per ep.
Rating: R - 17+ (violence & profanity)


Score: 6.741 (scored by 1498914,989 users)
1 indicates a weighted score.
Ranked: #54142
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #3187
Members: 46,772
Favorites: 339

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Ranked #5414Popularity #3187Members 46,772
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Episodes: /12


Kousuke Mikado has been able to see spirits for as long as he can remember. Extremely terrified of them, he tries to suppress his ability by wearing glasses. One day, while working at a bookstore, he catches the attention of Rihito Hiyakawa, an eccentric medium who is convinced that they were destined to meet each other.

Thanks to Hiyakawa's antics, Mikado is thrust into the world of the paranormal, with the former promising that he will shed his fears if Mikado stays with him. As they continue to work together, the two discover a series of malicious curses that all point to the same name—"Erika Hiura." What is this person's goal, and how do they connect with Mikado and Hiyakawa?

[Written by MAL Rewrite]


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Episode Videos

Related Anime

Characters & Voice Actors


Usui, Hisato
Sakikawa, Yukiya
Producer, Planning


Opening Theme

Apple Music
Amazon Music
Youtube Music
"Saika (サイカ)" by Frederic (フレデリック)

Ending Theme

"Breakers" by Wataru Hatano


Feb 12, 2024
The Night Before the Tricornered Window Destiny was an extremely pleasant surprise. I am a big fan of BL anime, and went into this not expecting very much from the story or characters. A lot of BL anime are watered down yaoi, and tend to have a very weak story that mostly hinges upon angst between the main characters.

This show was an exception to that generalization. The story is refreshing and unique, centering on the occult and mediums and the powers they possess. The entire cast is well done and well-rounded, making the show as well as the ending feel fulfilling and worthwhile.

Yes, ...
Jan 18, 2022
Mixed Feelings
Not gonna lie, i thought this is gonna be pure BL since its been recommendable recent in fujoshi community. But i think its kindddd offff fair but kindaaa off not. I will say this, its SUPER DUPER GAY in ONLY just in the beginning but it kinda slowly show that no, this is NOT BL.

If you watch for like 1st few episodes, yes this is about 2 men who just happen kinda look sexually exorcist some bad omen / spirits. I think THATS why it look like BL. Its kinda a waste and a bummer cuz imagine people watching this are not fujoshi, they'll be ...
Dec 29, 2021
I'm gonna say it - it's hardly a BL. It really doesn't feel like one, and I'm not sure if I should be angry at the queer-baiting, or disappointed it doesn't use the source material better.

I entered this anime with no ideas whatsoever. I was told it was a BL, I saw the trailers, and that was it. I thought it was a great concept and I was excited for a BL with an actual plot alongside their relationship.

First off, if you don't know the manga, you'll be pretty confused. There are scenes that are awkward and quiet, and overall the plot couldn't ...

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Recent Forum Discussion

Poll: Sankaku Mado no Sotogawa wa Yoru Episode 1 Discussion ( 1 2 )
KANLen09 - Oct 3, 2021
81 repliesby Hancock23 »»
Jan 14, 7:12 AM
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KANLen09 - Dec 19, 2021
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Poll: Sankaku Mado no Sotogawa wa Yoru Episode 4 Discussion
KANLen09 - Oct 24, 2021
13 repliesby MyLadyShip »»
Jan 6, 2023 3:01 AM
DillanSmokes - Dec 11, 2022
1 repliesby KayKimii »»
Dec 11, 2022 5:18 PM
So will it be BL or not?
kari-ya - Sep 8, 2021
14 repliesby Raslen_1412 »»
Jun 29, 2022 11:29 AM