Ascend to Zero

Do you have a past you wish to change? In the distant future, humanity stands on the brink of extinction due to an alien invasion. As a last hope, the surviving remnants send the protagonist, the "Chrono Child" into the future inside a time capsule. With the ability to stop time, you can travel back to the past for a limited duration and alter key events. Each time you successfully change a moment in the past, precious people return to your reality upon your return.