I'm Twelve Days Away from Marrying You.

The story takes place in the summer of 2002 Shaojie and Suzhen have been in love with each other since they were in the second year of high school. After going through different places, poverty, and family opposition, they have been together for eight years. They eloped to Tianjin for love, and finally received their family's blessing. The wedding was scheduled for January 12, 2011. But on the night with only 12 days left before the wedding, a quarrel led to an accident, and Su Zhen passed away unfortunately. From then on, Shao Jie was alone with a room full of memories, and spent the rest of his life stuck in the regret of "I was only 12 days away from marrying you."