18if (2017)
- HD 1080
- Runtime: 24m.
- Status: Ended
0
- Languages: ja
- Country: Japan
- Stars: Nobunaga Shimazaki, Takehito Koyasu, Kaori Nazuka, Ai Kakuma, Aya Endo
- Production_studio: GONZO
- Seasons: 1
- Episodes: 13
- First air date: 2017-07-07
- Last air date: 2017-09-29
- providers: Crunchyroll, Crunchyroll Amazon Channel
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.