18if

TV series · United States

18if

2017Action · Animation · Mystery · Science fiction

★ 5.5 / 10 TMDb rating · 13 votes

United States

Where can you watch 18if?

Last checked: Sep 20, 2026, 12:14 AM UTC

Watch 18if (2017) in United States: compare confirmed streaming providers and available ways to watch.

18if is available with a subscription to Crunchyroll in United States. You can buy 18if digitally from Prime Video. Paid add-on channels also offer this title: Prime Video + Crunchyroll. They are not automatically included in a base subscription.

Prime Video

Add-on subscription · Crunchyroll

Series offerAudio: English, jpnSubtitles: English, por, Español
Add-on subscription
Go to provider

Prime Video

Buy

SDSeries offerAudio: jpn
Price not provided
Go to provider

Prime Video

Buy

SDSeries offerAudio: EnglishSubtitles: English
Price not provided
Go to provider

Prime Video

Buy

HDSeries offerAudio: EnglishSubtitles: English
Price not provided
Go to provider

Crunchyroll

Subscription

HDSeries offerAudio: English, jpnSubtitles: English, por, Español
SubscriptionAvailable through Nov 30, 9998
Go to provider

Prime Video

Buy

HDSeries offerAudio: jpn
Price not provided
Go to provider

Check picture and language options with the provider. Comparison within the same offer type, quality, currency and unit. Opens the provider website.

Seasons

A series offer does not confirm every season or episode.

Season 1+

Prime Video

Buy

SDSeason 1Audio: EnglishSubtitles: English
$17.99Lowest comparable price
Go to provider

Prime Video

Add-on subscription · Crunchyroll

Season 1Audio: English, jpnSubtitles: English, por, Español
Add-on subscription
Go to provider

Crunchyroll

Subscription

HDSeason 1Audio: jpnSubtitles: English, por, Español
SubscriptionAvailable through Nov 30, 9998
Go to provider

Prime Video

Buy

HDSeason 1Audio: EnglishSubtitles: English
$26.99Lowest comparable price
Go to provider

Prime Video

Buy

HDSeason 1Audio: jpn
$26.99Lowest comparable price
Go to provider

Prime Video

Buy

SDSeason 1Audio: jpn
$17.99Lowest comparable price
Go to provider

Crunchyroll

Subscription

HDEpisode 1Audio: jpnSubtitles: English, por, Español
SubscriptionAvailable through Nov 30, 9998
Go to provider

Prime Video

Buy

HDEpisode 1Audio: EnglishSubtitles: English
$2.99
Go to provider

Prime Video

Buy

SDEpisode 1Audio: EnglishSubtitles: English
$1.99
Go to provider

Prime Video

Add-on subscription · Crunchyroll

Episode 1Audio: English, jpnSubtitles: English, por, Español
Add-on subscription
Go to provider

Prime Video

Buy

SDEpisode 1Audio: EnglishSubtitles: English
$1.99
Go to provider

Prime Video

Add-on subscription · Crunchyroll

Episode 1Audio: English, jpnSubtitles: English, por, Español
Add-on subscription
Go to provider

Prime Video

Buy

HDEpisode 1Audio: EnglishSubtitles: English
$2.99
Go to provider

Crunchyroll

Subscription

HDEpisode 1Audio: jpnSubtitles: English, por, Español
SubscriptionAvailable through Nov 30, 9998
Go to provider

Prime Video

Add-on subscription · Crunchyroll

Episode 1Audio: English, jpnSubtitles: English, por, Español
Add-on subscription
Go to provider

Prime Video

Buy

HDEpisode 1Audio: EnglishSubtitles: English
$2.99
Go to provider

Prime Video

Buy

SDEpisode 1Audio: EnglishSubtitles: English
$1.99
Go to provider

Crunchyroll

Subscription

HDEpisode 1Audio: jpnSubtitles: English, por, Español
SubscriptionAvailable through Nov 30, 9998
Go to provider

Prime Video

Add-on subscription · Crunchyroll

Episode 1Audio: English, jpnSubtitles: English, por, Español
Add-on subscription
Go to provider

Prime Video

Buy

HDEpisode 1Audio: EnglishSubtitles: English
$2.99
Go to provider

Prime Video

Buy

SDEpisode 1Audio: EnglishSubtitles: English
$1.99
Go to provider

Crunchyroll

Subscription

HDEpisode 1Audio: jpnSubtitles: English, por, Español
SubscriptionAvailable through Nov 30, 9998
Go to provider

Prime Video

Add-on subscription · Crunchyroll

Episode 1Audio: English, jpnSubtitles: English, por, Español
Add-on subscription
Go to provider

Prime Video

Buy

SDEpisode 1Audio: EnglishSubtitles: English
$1.99
Go to provider

Prime Video

Buy

HDEpisode 1Audio: EnglishSubtitles: English
$2.99
Go to provider

Crunchyroll

Subscription

HDEpisode 1Audio: jpnSubtitles: English, por, Español
SubscriptionAvailable through Nov 30, 9998
Go to provider

Crunchyroll

Subscription

HDEpisode 1Audio: jpnSubtitles: English, por, Español
SubscriptionAvailable through Nov 30, 9998
Go to provider

Prime Video

Add-on subscription · Crunchyroll

Episode 1Audio: English, jpnSubtitles: English, por, Español
Add-on subscription
Go to provider

Prime Video

Buy

SDEpisode 1Audio: EnglishSubtitles: English
$1.99
Go to provider

Prime Video

Buy

HDEpisode 1Audio: EnglishSubtitles: English
$2.99
Go to provider

Crunchyroll

Subscription

HDEpisode 1Audio: jpnSubtitles: English, por, Español
SubscriptionAvailable through Nov 30, 9998
Go to provider

Prime Video

Buy

HDEpisode 1Audio: EnglishSubtitles: English
$2.99
Go to provider

Prime Video

Buy

SDEpisode 1Audio: EnglishSubtitles: English
$1.99
Go to provider

Prime Video

Add-on subscription · Crunchyroll

Episode 1Audio: English, jpnSubtitles: English, por, Español
Add-on subscription
Go to provider

Prime Video

Buy

SDEpisode 1Audio: EnglishSubtitles: English
$1.99
Go to provider

Crunchyroll

Subscription

HDEpisode 1Audio: jpnSubtitles: English, por, Español
SubscriptionAvailable through Nov 30, 9998
Go to provider

Prime Video

Add-on subscription · Crunchyroll

Episode 1Audio: English, jpnSubtitles: English, por, Español
Add-on subscription
Go to provider

Prime Video

Buy

HDEpisode 1Audio: EnglishSubtitles: English
$2.99
Go to provider

Prime Video

Add-on subscription · Crunchyroll

Episode 1Audio: English, jpnSubtitles: English, por, Español
Add-on subscription
Go to provider

Prime Video

Buy

SDEpisode 1Audio: EnglishSubtitles: English
$1.99
Go to provider

Prime Video

Buy

HDEpisode 1Audio: EnglishSubtitles: English
$2.99
Go to provider

Crunchyroll

Subscription

HDEpisode 1Audio: jpnSubtitles: English, por, Español
SubscriptionAvailable through Nov 30, 9998
Go to provider

Prime Video

Add-on subscription · Crunchyroll

Episode 1Audio: English, jpnSubtitles: English, por, Español
Add-on subscription
Go to provider

Crunchyroll

Subscription

HDEpisode 1Audio: jpnSubtitles: English, por, Español
SubscriptionAvailable through Nov 30, 9998
Go to provider

Prime Video

Buy

SDEpisode 1Audio: EnglishSubtitles: English
$1.99
Go to provider

Prime Video

Buy

HDEpisode 1Audio: EnglishSubtitles: English
$2.99
Go to provider

Prime Video

Buy

HDEpisode 1Audio: EnglishSubtitles: English
$2.99
Go to provider

Prime Video

Buy

SDEpisode 1Audio: EnglishSubtitles: English
$1.99
Go to provider

Prime Video

Add-on subscription · Crunchyroll

Episode 1Audio: English, jpnSubtitles: English, por, Español
Add-on subscription
Go to provider

Crunchyroll

Subscription

HDEpisode 1Audio: jpnSubtitles: English, por, Español
SubscriptionAvailable through Nov 30, 9998
Go to provider

Prime Video

Buy

HDEpisode 1Audio: EnglishSubtitles: English
$2.99
Go to provider

Prime Video

Buy

SDEpisode 1Audio: EnglishSubtitles: English
$1.99
Go to provider

Prime Video

Add-on subscription · Crunchyroll

Episode 1Audio: English, jpnSubtitles: English, por, Español
Add-on subscription
Go to provider

Crunchyroll

Subscription

HDEpisode 1Audio: jpnSubtitles: English, por, Español
SubscriptionAvailable through Nov 30, 9998
Go to provider

Crunchyroll

Subscription

HDEpisode 1Audio: jpnSubtitles: English, por, Español
SubscriptionAvailable through Nov 30, 9998
Go to provider

Prime Video

Add-on subscription · Crunchyroll

Episode 1Audio: English, jpnSubtitles: English, por, Español
Add-on subscription
Go to provider

Prime Video

Buy

SDEpisode 1Audio: EnglishSubtitles: English
$1.99
Go to provider

Prime Video

Buy

HDEpisode 1Audio: EnglishSubtitles: English
$2.99
Go to provider

Check picture and language options with the provider. Comparison within the same offer type, quality, currency and unit. Opens the provider website.

What is 18if about?

Haruto Tsukishiro wakes up in a dream world dominated by strange and powerful entities called Witches. To survive, he gets the assistance of research professor Katsumi Kanzaki and a mysterious white-haired girl called Lily. With their help, Haruto must outsmart the witches and find a way to return to the real world.

Cast

Nobunaga Shimazaki, Takehito Koyasu, Kaori Nazuka, Ai Kakuma, Aya Endo, Ayaka Shimizu, Ayako Kawasumi, Azumi Asakura

Questions about 18if

Can I watch 18if for free?

The last check found no free offer for 18if in United States. A paid subscription is not counted as free.

What picture and language options are available?

Confirmed picture quality: SD and HD. Check each offer for audio and subtitles; options may depend on your device and plan.

Which seasons of 18if can I stream?

Specific season or episode offers for 18if cover seasons 1. Open a season to compare providers and prices. A series-level offer does not automatically confirm every season.

You might also like

The Boys★ 8.4

The Boys

2019 · TV series

Prime Video