WangXian Season 3 :- Changing The Past

After facing all the humiliations of the actions which she didn't do at all Wei Ying courtesy Wuxian decided to take her own life by jumping down the cliff. Her soulmate, her lover Lan Zhan courtesy Wangji decided to save her going against the whole cultivation world so he went forward and grabbed Wuxian's hand and pulled her towards himself. But little did he know about the fact that Wei Wuxian wanted to die in his hands, Wangji was holding a dagger just in case he need to kill someone who tried to harm his Wei Wuxian. Wuxian told Wangji to take care of Sizhui and MinJi, then she kissed Wangji for the last time, took the other hand of Wangji which was holding the dagger and stabbed it in her heart.
Till the time Wangji could understand that his Wei Wuxian just died in his hands which was not his fault though but the choice of his lover he felt guilty that he killed his Wuxian so he took the same dagger and killed himself stabbed himself at the same place where Wuxian had stabbed herself Heart.
After this whole bloody incident, after few weeks Lan Huan courtesy Xichen tried to communicate with Wangji's soul and Wuxian's soul even was able to communicate with his brother but not with his brother's lover. Wangji said the same thing to his brother to take care of Lan Yuan courtesy Sizhui and Wei MinJi. Without saying anything else Wangji's soul left.
After 17 years, Sizhui and MinJi turned 16. Sizhui, a very good looking and hardworking person just like his both parents. MinJi, very cute and beautiful maiden just like her mother, she is also a warrior. Their uncle Xichen was world to them, they knew about their parents and what happened with them. One day when both of them Lan Sizhui and his uncle Xichen was paying a visit to Wangji and Wuxian's resting place and Sizhui broke down. He cried a lot, Xichen was trying to comfort his nephew.
"I wish I could time travel and fix my parents life." Wished Sizhui.
"Your wish is approved" said someone and then both fainted.