The first sword after coming ashore

Ten years ago, Xia Yan had just entered university when his parents unexpectedly passed away in an earthquake. Before their death, they saved the triplets Shen Qinghan, Shen Youwei, and Shen Dongyu in the mountain village, and told Xia Yan to raise them to adulthood. The three girls also promised that on Xia Yan's 28th birthday, he could choose one of them to marry. Xia Yan followed his parents' last wishes and dedicated himself to the three girls without complaint, selling all his family's industries and only keeping a house. Finally, the three girls achieved remarkable success, but in the entertainment industry, they met Ji Boda, their former childhood neighbor from the countryside. They all devoted themselves to Ji Boda, and ultimately killed Xia Yan at his 28th birthday banquet. Xia Yan unexpectedly was reborn seven days before the birthday banquet and awakened the Ruthless System. As long as the three girls suffered the pain of love, Xia Yan would receive rewards, and he embarked on his path of revenge.

Synopsis from DramaGo.