The Door into Summer

“An adventure spanning 30 years starts now.”

It is 2025, and Soichiro Takakura (Kento Yamazaki), a roboticist who made his name in the 1990s, wakes from decades in cryosleep to a world that has moved on without him. Takahiro Miki adapts Robert A. Heinlein's novel, following him as he looks for any way back to 1995. What he is chasing is Riko (Kaya Kiyohara), the adopted sister he left behind, and the years he lost with her.