Series

18if

★ 5.5(13)201724m1 season

Action & Adventure Animation Mystery Sci-Fi & Fantasy

18if is streaming on U-NEXT, Anime Times Amazon Channel, dAnime Amazon Channel, FOD Channel Amazon Channel and FOD in Japan, and available to rent or buy on Amazon Video and Google Play Movies. Availability checked 11 June 2026.

Where to watch 18if

🇯🇵 Japan

U-NEXTStream

Anime Times Amazon ChannelStream

dAnime Amazon ChannelStream

FOD Channel Amazon ChannelStream

FODStream

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Good to know

Release date: 2017-07-07
Runtime: 24m
Language: Japanese
Seasons: 1
Episodes: 13
Network: Tokyo MX
Status: Ended
Country: Japan
Studio: GONZO

18if — trailer

About 18if

18if is a 2017 web series in the Action & Adventure, Animation and Mystery genres, starring Nobunaga Shimazaki, Takehito Koyasu and Kaori Nazuka. It spans 1 season and 13 episodes, and originally aired on Tokyo MX. It holds an average rating of 5.5/10 from 13 viewers. Below you can see where to watch 18if in Japan — across streaming, rental and purchase options — along with the full cast, trailer and viewer reviews.

Synopsis

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.

Seasons (1)

Season 113 eps · 2017

Cast

Nobunaga Shimazaki

Haruto Tsukishiro (voice)

Takehito Koyasu

Katsumi Kanzaki (voice)

Kaori Nazuka

Lily (voice)

Ai Kakuma

Airi Kojima (voice)

Aya Endo

Yuuko Sakurabe (voice)

Ayaka Shimizu

Egos (voice)

Ayako Kawasumi

Eve (voice)

Azumi Asakura

Mirei Saegusa (voice)

Emi Nitta

Misaki (voice)

Fumiko Orikasa

Sono (voice)

Inori Minase

Nene (voice)

Nao Tamura

Kayo Sugisaki (voice)

Frequently asked questions

Where can I watch 18if in Japan?+

In Japan, you can stream 18if on U-NEXT, Anime Times Amazon Channel, dAnime Amazon Channel, FOD Channel Amazon Channel and FOD. It's also available to rent or buy on Amazon Video and Google Play Movies.

Is 18if on Netflix?+

18if is not on Netflix in Japan right now, but you can stream it on U-NEXT, Anime Times Amazon Channel, dAnime Amazon Channel, FOD Channel Amazon Channel and FOD.

How many seasons of 18if are there?+

18if has 1 season and 13 episodes in total.

Who stars in 18if?+

18if stars Nobunaga Shimazaki, Takehito Koyasu, Kaori Nazuka, Ai Kakuma and Aya Endo.

When did 18if come out?+

18if is a 2017 web series.

What genre is 18if?+

18if is Action & Adventure, Animation, Mystery and Sci-Fi & Fantasy series.