The Girl Who Leapt Through Time (1985)

Synopsis

After a lab accident, junior high student Kazuko gains the ability to time leap by hearing a shattering sound. She soon meets Kazuo, a mysterious boy who reveals he’s from the 27th century. Despite warnings of the dangers of time travel, Kazuko uses her powers to help those around her. As she uncovers Kazuo’s true identity and the limits of her abilities, her actions lead to tragic consequences.