The official website for Hello World , the original anime film by director Tomohiko Ito and Graphinica , posted a teaser video and teaser visual for the film on Thursday. The teaser reveals the film's mai cast and September 20 opening date.

The cast includes (left to right in image above):

Minami Hamabe as Ruri Ichigyō, Naomi's classmate and fellow library committee member

as Ruri Ichigyō, Naomi's classmate and fellow library committee member Takumi Kitamura as Naomi Katagaki, the film's shy 16-year-old high school protagonist

as Naomi Katagaki, the film's shy 16-year-old high school protagonist Tori Matsuzaka as Naomi Katagaki, but 10 years older, from the future

The film is set in Kyoto in the year 2027. The film's teaser video shows famous Kyoto spots such as Fushimi Inari Taisha and Kamo Shrine. The teaser hints at a time travel story, with the text "If I could do it all over again," and "The one who held your hand to protect your future was myself in the future."

Ito ( Sword Art Online franchise , ERASED ) is directing the film at Graphinica ( Expelled from Paradise ). Mado Nozaki (Bablyon novel series, KADO - The Right Answer ) is writing the screenplay, and Yukiko Horiguchi ( K-ON! , Lucky Star , Tamako Love Story ) is designing the characters.