Adult people all over Japan had been captivated by 20th Century Expo, theme parks that reenacted good old days of the 1970s (the last days of Japan's high economic growth). One day the adults disappeared into the theme parks, leaving their children abandoned. That was a plot by "Yesterday Once More," an organization who despises the 21st century and tries to bring Japan back to the 20th century with the dreams and hopes. Shinnosuke and his parents, Hiroshi and Misae, fight against the plot of "Yesterday Once More" in order to live together with family in the 21st century.
(Source: Manabu Tsuribe)
Characters & Voice Actors

Boo-chan
Main
Satou, Chie
Japanese
Kazama, Tooru
Main
Mashiba, Mari
Japanese
Nohara, Hiroshi
Main
Fujiwara, Keiji
Japanese
Nohara, Himawari
Main
Koorogi, Satomi
Japanese
Nohara, Misae
Main
Narahashi, Miki
Japanese
Nohara, Shinnosuke
Main
Yajima, Akiko
JapanesePromotion Videos
Recommended for you
Ingress the Animation
ONA
23m
Jewelpet Magical Change
TV
24m
Kick-Heart
Movie
12m
Komatta Jiisan
TV
1m
Ladies versus Butlers! Specials
Special
3m
Magikano
TV
24m
Burn Up! W
OVA
27m
Come Together! to the Seton Academy
Special
6m
Penguin Musume Heart Special
Special
10m
Ajimu: Kaigan Monogatari
ONA
28m
Atashinchi: The 3D Movie
Movie
40m
Locke the Superman
Movie
119m
Galo Sengen
Music
3m
Island
TV
23m
Magical Play
ONA
5m