Yier falls in love with Pei but still doesn't remember him and the master takes him away because he is also looking for the cure so that he can recover his memory. After Yier loses his baby his health worsens and they have to go to the desert to look for some plants, at this point Yier already knows all about his past and doesn't want to be with Pei. But even so he returns to the capital with him so that he can take care of him because he is still in poor health. Over time they reconcile but Yier is depressed because his master decided to stay in the war to heal the wounded people. Many things happen, the war begins and there are conspiracies in the palace.
Also to add about the reconciliation question after recovering from amnesia, yi'er was indeed angry and didn't want to be with pei zheng after he remembered his past but he forgave him after the desert events where Pei saved Yi'er's life and also because Yi'er kept not only his memories as a prince but also as Shen Shijiu so he knew Pei had actually changed and wasn't lying about his intentions to be a better person because Pei helped him a lot while he was amnesiac and yi'er ofc also knew how they were in love during that time to the point yi'er got pregnant back then. Afterwards yi'er and pei become a real real couple for the rest of the novel because now yi'er had his whole mind back and after that lotsss of things happen during war it would be too long to tell but one thing for sure is that this manhua will keep interesting until it's end 😆
