Toki wo Kakeru Shoujo

Makoto Konno spends her final year of high school studying just enough and passing the rest of her time with her two closest friends, Chiaki and Kousuke, without any clear idea what she wants after graduation. Then she accidentally discovers an ability to leap backward through time and uses it exactly as a teenager might: undoing embarrassing moments, retrying tests, and creating more time for fun.

Each leap feels free until consequences removed from Makoto's own life begin appearing in someone else's. Fixing one problem for herself can create another for a person she cares about, and the number of chances available to her is not endless. Once feelings she has been avoiding become part of the equation, Makoto learns that controlling time is very different from being able to keep everything exactly the way she wants it.