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Alternative Titles

Synonyms: 18 If
Japanese: 18if
English: 18if
More titles


Type: TV
Episodes: 13
Status: Finished Airing
Aired: Jul 7, 2017 to Sep 29, 2017
Premiered: Summer 2017
Broadcast: Fridays at 22:00 (JST)
Producers: Sotsu, DLE, BS Fuji, Tokyo MX, Mobcast, RAY
Licensors: Funimation
Studios: Gonzo
Source: Mixed media
Genres: MysteryMystery, SupernaturalSupernatural
Duration: 23 min. per ep.
Rating: R - 17+ (violence & profanity)


Score: 6.131 (scored by 2092620,926 users)
1 indicates a weighted score.
Ranked: #85932
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #2800
Members: 56,218
Favorites: 106

Available At


Streaming Platforms

Ranked #8593Popularity #2800Members 56,218
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Episodes: /13
* Your list is public by default.


Waking up in a strange bedroom in a dream world, teenager Haruto Tsukishiro finds a strange app on his phone. When he activates the program, an odd woman appears and tries to drag him to her realm. Luckily, a mysterious, white-haired girl severs their connection and helps him escape, revealing that the woman is a witch; however, their conversation is cut short. As Haruto enters the realm again, he meets an anthropomorphic, talking cat named Katsumi Kanzaki. While the witch's minions pursue them, the white-haired girl opens a door for them to escape.

After their ordeal, Haruto describes their savior—which only he can see—and Katsumi, the leading authority on dream world research, realizes that she must be "Lily," a being that resurfaces repeatedly across multiple dreamscapes. Hoping to leave the dream world through a blue door, they enter the witch's realm once again. Finding themselves in peril, Lily reveals the truth to Haruto: witches suffer from "Sleeping Beauty Syndrome," a coma-like sleep state induced by torment in their real world lives. Thus, they cannot wake until they are defeated in the dream world.

After finally defeating the witch and locating the blue door, Haruto and Katsumi say their farewells, promising to meet up in the real world. However, when Haruto exits through the door, he awakens in the dream world bedroom once more. Seeking answers, Haruto and Katsumi try to uncover the mysteries of the witches, Lily, and Haruto's own inability to leave the dream world.

[Written by MAL Rewrite]


18if is a part of a multi-media project that also includes a mobile game and a virtual reality game.

Episode Videos

Characters & Voice Actors


Morimoto, Kouji
Co-Director, Producer, Episode Director, Script, Storyboard, Key Animation, Setting, Animation Director, Screenplay, Background Art
Cook, Justin
Herek, Samantha
Assistant Producer
Nishimori, Akira
Director, Episode Director


Opening Theme

Apple Music
Amazon Music
Youtube Music
"Red Doors feat. Yoshikazu Mera (Red Doors feat.米良美一)" by TeddyLoid

Ending Theme

1: "Wonderland" by Lily (Kaori Nazuka) (eps 1)
2: "Break The Doors feat. Aina The End (BiSH)" by TeddyLoid (eps 2)
3: "Yume Koibana (夢恋花)" by Kayo Sugisaki (Nao Tamura) (eps 3)
4: "ANGELNOIR" by Ichiko Aoba (青葉市子) (eps 4)
5: "Plumeria (プルメリア)" by Aki Okui (eps 5)
6: "Yukue Shirezu (行方知レズ)" by Gesshoku Kaigi (月蝕會議) (eps 6)
7: "too late" by Nene (Inori Minase) (eps 7)
8: "Sora no Oto (空の音)" by Ryu Miho (eps 8)
9: "Tsubasa (ツバサ)" by Misaki (Emi Nitta) (eps 9)
10: "Factor Word (ファクター・ワード)" by a-Mujigen (Shiho Nanba) (eps 10)
11: "Salvation" by TeddyLoid (eps 11)
12: "Shiratori wa Nemuru feat. Yoshikazu Mera (白鳥は眠る feat.米良美一)" by TeddyLoid (eps 12)
13: "if" by Haruto Tsukishiro (Nobunaga Shimazaki) (eps 13)


Oct 30, 2022
Where the hell do I start with this one? First of all, that horrendous score, a whopping 6.14 at the time of writing. Ignore it. I don't know what the hell happened here. Like, I get it. This show is very strange, has some problems, and is inconsistent by design. But I simply do not understand how so many people found so little enjoyment in it. There is clearly some government conspiracy at play here, so I'm going to expose this scheme for what it is because this is a great show with a lot of character.

It's very hard to describe this show, but ...
Jun 7, 2021
Mixed Feelings
18if is a strange and indecisive anime. It came with an tie-in mobile game "18: Kimi to Tsunagaru Puzzle" and had 11 different directors for the 13 episodes. This constant change of directors led to a bunch of different art styles and stories. Thus it is hard to come up with a single genre type for this anime. But most of them would categorize under Psychological as psychotic issues and their after effects are a constant underline here.

The story, in broad terms, follows Haruto as he confronts girls is psychological needs in their dreams. He is assisted by Professor Kanzaki with his own agenda and ...
Jul 4, 2022
for starters i would say teddyloid is a monster.
I prefer dark, strange souls, where sadness joins joy, like yin and yang. if an anime does not respect these things it does not even deserve my 8. we must say however that if an anime is made on a road, like for example Prison school which is based on ecchi, I do not use this criterion. however in this case 18if does not follow a single path, so ...

-ok, the episodes are all disconnected from each other, the last three explain everything.
-the first 10 speak of strong concepts: such as bullying, revenge, suicide ... but ...

Interest Stacks

by q66
19 Entries · 32 Restacks


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Recent Forum Discussion

Poll: 18if Episode 13 Discussion ( 1 2 )
Stark700 - Sep 29, 2017
64 repliesby Destroyer31 »»
Aug 26, 7:00 AM
Poll: 18if Episode 3 Discussion ( 1 2 )
Stark700 - Jul 21, 2017
66 repliesby Destroyer31 »»
Aug 26, 1:11 AM
Don't drop this after first episode
MihauRit - Jul 22, 2017
18 repliesby Hartm12 »»
Apr 7, 9:40 PM
Poll: 18if Episode 4 Discussion
Stark700 - Jul 28, 2017
47 repliesby StephARose2003 »»
Jan 5, 8:42 PM
Poll: 18if Episode 2 Discussion ( 1 2 )
Stark700 - Jul 14, 2017
74 repliesby Bunille »»
Aug 28, 2022 5:10 AM
It’s time to ditch the text file.
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