When 17-year-old Makoto Konno gains the ability to leap backwards through time she immediately sets about improving her grades and preventing personal mishaps. However, she soon realises that changing the past isn't as simple as it seems; eventually she finds that in order to save her own future, and that of her friends, she will have to use her new powers more responsibly. Another breathtakingly created and imagined Japanese animation, based on the novel by Yasutaka Tsutsui.