Mirai (2018) — AI Story Visualization

Plot Analysis Summary

A jealous child uses journeys through family memory and time to understand his sister, parents, and place within generations.

Story Structure — 5 Plot Phases

A Sister Enters the House

Kun enjoys his familiar home until Mirai's birth redirects his parents' attention. His jealousy leads him into the garden, where impossible transformations begin.

Key Events

• Kun's Family Home — Kun lives with his parents in a house designed around a garden tree. Characters: Kun, Father, Mother Location: The stepped house in Yokohama
• Mirai Is Born — The newborn Mirai changes the family's attention and daily routine. Characters: Kun, Mirai, Father, Mother Location: Family home
• Kun's Jealous Tantrum — Kun lashes out because his parents focus on Mirai. Characters: Kun, Father, Mother, Mirai Location: Family home
• The Garden Prince — A strange man claims to be the house's prince and reveals a dog-like secret. Characters: Kun Location: Family garden

Mirai From Tomorrow

Kun encounters an older Mirai in the garden and helps her put away the Hinamatsuri dolls. The experience begins to connect his frustration with Mirai's future.

Key Events

• Hinamatsuri Dolls — The family displays dolls for Mirai, but Father fails to put them away afterward. Characters: Kun, Mirai, Father, Mother Location: Family home
• Future Mirai Appears — Fourteen-year-old Mirai appears and explains the dolls' effect on her future. Characters: Kun, Mirai Location: Family garden
• Dolls Put Away — Kun and future Mirai put away the dolls with help from the garden's transformation. Characters: Kun, Mirai Location: Family home
• Mother's Childhood Photos — Mother shows Kun photographs of herself as a six-year-old. Characters: Kun, Mother Location: Family home

Lessons From the Past

Kun visits his mother's childhood and witnesses her conflict with Grandmother. A later journey to a rural workshop helps him learn the confidence needed to ride a bicycle.

Key Events

• The Cat Request — Kun meets young Mother, who asks Grandmother for a pet cat through a hidden note. Characters: Kun, Mother, Mother Location: Grandmother's home in the past
• Mother Is Scolded — Young Mother scatters toys and food, then cries when Grandmother scolds her. Characters: Kun, Mother, Mother Location: Grandmother's home in the past
• Bicycle Present — Kun asks for a bicycle and receives one with training wheels. Characters: Kun, Father, Mother Location: Family home
• Riding Lesson — Father helps Kun practice, but Kun cannot initially ride without falling. Characters: Kun, Father Location: Outside the family home
• Workshop Time Slip — Kun meets an injured young man who takes him riding on a horse and motorcycle. Characters: Kun, Young Man Location: Rural workshop in the past
• Kun Rides Alone — Kun successfully rides his bicycle after returning from the past. Characters: Kun, Father, Mother Location: Family neighborhood

The Station of Isolation

A family-trip dispute sends Kun into a strange station and onward to Tokyo Station. His inability to name his parents leaves him facing the threat of Lonely Land.

Key Events

• Family Trip Planned — The family prepares for a day trip, but Kun throws another fit about his outfit. Characters: Kun, Father, Mother, Mirai Location: Family home
• Isogo Station Appears — Kun finds a station in the garden, where Young Man warns him not to board. Characters: Kun, Young Man Location: Isogo Station
• Tokyo Station Alone — Kun becomes frightened after arriving alone and cannot name either parent. Characters: Kun Location: Tokyo Station
• The Lonely Land Train — An attendant directs Kun toward a bullet train to Lonely Land if no relative retrieves him. Characters: Kun, Mirai Location: Tokyo Station platform
• Kun Rescues Baby Mirai — Kun spots Baby Mirai near the train and rescues her, accepting his role as her brother. Characters: Kun, Mirai Location: Tokyo Station platform

A Family Seen Through Time

Kun saves Baby Mirai and is guided through the family's past and future inside the tree. He returns with greater empathy and joins the family trip.

Key Events

• The Family Tree — Kun sees family history and future possibilities inside the tree. Characters: Kun, Mirai, Father, Mother, Mother, Young Man Location: The tree in the garden
• Young Man Revealed — Kun discovers that the man from Isogo Station is his future self. Characters: Kun, Young Man Location: The family tree's future vision
• The Trip Resumes — More open-minded Kun joins his family for the planned day trip. Characters: Kun, Mirai, Father, Mother Location: Outside the family home

Story Breakdown

• Family Reconfiguration — Mirai's birth changes the household and leaves Kun feeling displaced.
  • Newborn Sister Arrives — Mirai's birth initially makes Kun happy before parental attention shifts.
  • Jealousy Takes Hold — Kun repeatedly lashes out at his parents over the new family dynamic.
• Garden Time Gate — The garden becomes a gateway to unusual encounters and transformations.
  • The House Prince — Kun meets a strange man connected to the family dog.
  • Future Mirai Appears — Older Mirai returns to help resolve the forgotten doll ritual.
• Mother's Hidden Childhood — Kun witnesses the difficult childhood behind his mother's adult behavior.
  • The Cat Request — Young Mother asks Grandmother for a pet cat.
  • A Child Is Scolded — Kun sees young Mother cry after making a mess at home.
• Learning Independence — Kun's bicycle difficulties lead to a lesson from an earlier generation.
  • Training Wheels Fail — Father helps Kun practice, but Kun cannot balance the bicycle.
  • Workshop Riding Lesson — A young injured man takes Kun riding on a horse and motorcycle.
• Journey Toward Isolation — Kun's final tantrum sends him into a dangerous station journey.
  • Isogo Station Warning — A young man warns Kun not to board the mysterious train.
  • Lonely Land Threat — Kun faces a bullet train journey after failing to name his parents.
• Sibling Acceptance — Kun's rescue of Baby Mirai transforms jealousy into responsibility.
  • Baby Mirai Rescued — Kun pulls Baby Mirai away from the train to Lonely Land.
  • Family Tree Revelation — Kun sees family history and learns that Young Man is his future self.
• Return To Family — Kun returns from the supernatural journey with a more generous understanding of home.
  • Greater Empathy — Kun becomes more open-minded about his parents and sister.
  • Day Trip Begins — Kun joins the family instead of remaining trapped in his resentment.

Directed by

Mamoru Hosoda

Key Cast

• Moka Kamishiraishi — Kun (voice)
• Haru Kuroki — Mirai (voice)
• Gen Hoshino — Father (voice)
• Kumiko Aso — Mother (voice)
• Mitsuo Yoshihara — Mysterious Man (voice)