Mirai Review: Hosoda's Quieter, More Intimate Family Fantasy

This Mirai review starts with a correction: the film is not the epic about warriors and sacred books described in some listings. Mirai (original title: Mirai no Mirai) is a gentle animated fantasy from writer-director Mamoru Hosoda, built around a very small family drama. It is closer to a child's-eye view of home than to a blockbuster.

The film follows a boy learning to share his parents. It runs 98 minutes and carries a PG rating, so it sits comfortably in the family-friendly corner of the Fantasy movie reviews on this site.

Mirai Review: The Story So Far (No Spoilers)

The Mirai plot is simple. Kun is four years old, and he has been the center of his parents' world until a baby sister arrives. Suddenly everyone is tired, busy and focused on someone else.

Kun sulks, throws tantrums and retreats to the garden. There he meets Mirai as a teenager from the future, and the film opens up into a series of fantastical trips across his family's past. Each one nudges him toward a new understanding of love, belonging and what being an older brother means.

The tagline, "I have met the future," fits the film's mix of magic and ordinary life.

What Works in Mirai

The best thing about Mirai is how honest it is about childhood jealousy. Kun is not a saint. He is loud, stubborn and sometimes unfair, and the film lets him be all of that without turning him into a villain.

Hosoda keeps the magic grounded in everyday spaces. A family house and a small garden become portals to something larger, and the fantasy always circles back to a simple emotional question.

• Relatable family moments: Anyone who has lived with a new baby or a sulking toddler will recognize the chaos.

• A warm, human tone: The film favors small discoveries over big battles.

• A clear sense of perspective: Much of the story feels seen from a child's height.

The audience score of 7.2/10 on TMDB, from around 900 votes, suggests many viewers connect with that gentle approach.

Mirai Cast and Performances

The Mirai cast is voice-only, and the Japanese performances carry much of the warmth. Moka Kamishiraishi voices Kun, and the role asks for a lot: tantrums, sulks, wonder and sudden bursts of joy. It is a challenging job, and the energy rarely feels forced.

Haru Kuroki voices Mirai, bringing a calm, knowing presence to the older version of the character. Gen Hoshino and Kumiko Aso play Kun's father and mother, giving the parents a believable, slightly frazzled warmth. Yoshiko Miyazaki voices the grandmother, and Mitsuo Yoshihara appears as the Mysterious Man.

Direction by Mamoru Hosoda

Mamoru Hosoda wrote and directed, and his focus on family life is clear. Compared with big-spectacle animation, this is a smaller, more domestic story. It rewards patience more than it chases thrills.

Where Mirai Stumbles

The episodic structure is the main weakness. Because the story jumps between different moments in the family's past, some segments land harder than others, and the momentum can wobble.

Kun can also be exhausting. His tantrums are true to life, but viewers who do not warm to a stubborn four-year-old may find the first half tiring. The fantasy rules are loose too, so anyone wanting a tightly plotted time-travel adventure may feel short-changed.

Finally, the film is not an action spectacle, despite the genre tags attached to it in some places. If you expect combat or a world-saving quest, this is the wrong film.

Is Mirai Worth Watching?

Yes, Mirai is worth watching if you like thoughtful, character-led animation. It is a sincere, sometimes funny and often touching look at how a child grows by making room for someone new.

The film will not suit everyone. Its pacing is relaxed, and its stakes are emotional rather than dramatic. But if you want a gentle fantasy that treats a child's feelings seriously, it delivers. For more in this vein, browse our Animation movie reviews. You can also read more about the film on Wikipedia).

Who Will Enjoy Mirai

• Fans of Mamoru Hosoda and family-focused Japanese animation.

• Parents and older siblings who want a story about sharing love and attention.

• Viewers who prefer quiet fantasy over loud action.