About
A shy high schooler in Kyoto meets a man claiming to be his future self, who tells him he’s hacked into the past to save their first love.
Director
Writer
Producers
Music
2027Sound
Studio
Graphinica, TOHO, Hikari TV, Shueisha, jeki, movic, MBS, TV Osaka, Kansai Television, Yomiuri Telecasting Corporation, Lawson Entertainment, CyberAgent, Marui Group, Tokyo MX, LINE, Memory-Tech Holdings
Original Title
HELLO WORLD
Original Language
Japanese
Where to Watch
Region
Apple TV Store
Rent from
HD
€3.99
Apple TV Store
Buy from
HD
€16.99
Amazon Prime Video
Stream included
HD
Included
Amazon Video
Rent from
HD
€4.99
Amazon Video
Buy from
HD
€16.98
See all 15 options →
Prices last updated September 26, 2026. Pricing and availability may vary by region.
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Cast
Full credits →T
Takumi Kitamura
Naomi Katagaki – now (voice)
T
Tori Matsuzaka
Naomi Katagaki – future (voice)
M
Minami Hamabe
Ruri Ichigyou (voice)
H
Haruka Fukuhara
Misuzu Kadenokouji (voice)
M
Minako Kotobuki
Xu Yiyi (voice)
R
Rie Kugimiya
Crow (voice)
T
Takehito Koyasu
Tsunehisa Senko (voice)
N
Nanami Matsumoto
(voice)
K
Keigo Hoshino
(voice)
A
Ayaka Asai
Schoolgirl (voice)
A
Ayaka Nanase
Schoolgirl (voice)
E
Eiichiro Tokumoto
Researcher (voice)
E
Emiri Iwai
Schoolgirl (voice)
