Mirai(2018)

Storyline

• The movie follows a 4-year old boy who is struggling to cope with the arrival of a little sister in the family, until things turn magical. A mysterious garden in the backyard of the boy's home becomes a gateway allowing the child to travel back in time and encounter his mother as a little girl and his great-grandfather as a young man. These fantasy-filled adventures allow the child to change his perspective and help him become the big brother he was meant to be. — Variety Four year-old Kun is disappointed when the new baby in his family promptly replaces him as the center of attention; he refuses to accept his little sister, Mirai. When a magical and mysterious gateway opens in the garden, Kun has the chance to encounter his family members when they were young themselves. He is also visited by an older girl with the same name as his sister, leading to a series of surprising adventures, which change how he sees the world. — Anonymous