In a quiet corner of the city, four-year-old Kun Oota has lived a spoiled life as an only child with his parents and the family dog, Yukko. But when his new baby sister Mirai is brought home, his simple life is thrown upside-down; suddenly, it isn't all about him anymore. Despite his tantrums and nagging, Mirai is seemingly now the subject of all his parents' love.
To help him adapt to this drastic change, Kun is taken on an extraordinary journey through time, meeting his family's past, present, and future selves, as he learns not only what it means to be a part of a family, but also what it means to be an older brother.
[Written by MAL Rewrite]
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Trailer
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Characters & Voice Actors
Cast data: AniList (opens in a new tab) · updated
Voice actors in
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Voice actor · Japanese
星野源
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Voice actor · Japanese
麻生久美子
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Voice actor · Japanese
橋本広司
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Voice actor · Japanese
福山雅治
A language is listed when AniList credits an actor in it for at least one of these characters. It does not mean a dub is available to watch. The number beside a language is how many of this anime's characters have an actor credited in it.
Staff
Staff data: AniList (opens in a new tab) · updated
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