I'll Marry You This Time: Reborn to Save My Crush

Given a second chance at life, Yu Nian wakes up on the day everything went wrong. Armed with memories of a future where his beautiful class monitor Zhou Wan fell into darkness, he makes a bold vow: this time, he'll protect her at any cost. His shocking declaration catches everyone off guard—"I will marry you!" But can one determined boy rewrite fate and save the girl who never knew how much she meant to him?