I can't really remember much lol. I hope this helps. MC was fighting with a heavenly emperor or something, then she was killed. MC traveled to the past. FL is cold-hearted and doesn't have any emotions because she lost her heart (?). MC has the heart of FL when she travels to the past, and FL needs to kill MC and take her heart (?) back so she can transcend. MC and FL were lovers before MC time-traveled, but during that time, MC didn't care much about FL and focused on cultivating. Then FL died because of something I can't remember. When MC time-travels, she tries to make things better and make FL happy because (before time travel) MC always made FL cry. But after time travel, FL is different because of her lost heart (?). MC initially didn't know that she had the heart of FL. FL likes a little dragon girl and wanted to adopt her. FL suddenly remembered everything about the past (before time travel).