When Lin Xiao is on the brink of death, she unexpectedly gains the ability to turn back time. But this power isn't meant to rewrite her own fate: it helps other people change their lives. As she turns back time again and again, the past gradually comes into focus: after her younger brother went missing, she was left to live a tragic life. Carrying regret and guilt over her own life, Lin Xiao slowly finds redemption through helping others.
