YunaVogelzang

So i wached cdrama dashing youth then the donghua version of it then blood of youth donghua shao nian ge xing but i want to know what happened to su muyu because i completely don't understand even i watched all franchise like first dashing youth then young brew masters adventure then blood of youth donghua version great journey of teenagers but i don't know how su muyu got evil thrre and in the dark tales of blood river he's good i know that allot happened like lei mengsha died xiao rulofeng died xiao se is actually a royal in blood of youth and lei mengsha is lei wujie son but in the donghua it's longer because in great journey of teenagers is 4 season long but i need some help because i can't constantly watch it again to understand it better now I'm watching blood river i guess i watched it all together that is why I'm extremely confused but i have problems with remembering can someone explain what happened to su muyu and su changhe i know that in the end su changhe gets evil in the end but this feels different from them in blood of youth and great journey of teenagers but i didn't read the novel but only saw cdrama versions and donghua version