Rascal Does Not Dream of His First Love (Volume 7) by Hajime Kamoshida

Rascal Does Not Dream of His First Love is the seventh volume of the light novel series, where protagonist Sakuta Azusagawa must confront the consequences of a selfless act to save his first love, Shoko Makinohara. After her death, Sakuta tries to find a way to prevent the events from happening, which involves both sacrificing his own life and making choices about the people in his present. This volume is the conclusion of a story arc that deals with themes of selflessness, time travel, and the choices that lead to the future.