Why Is My Sister Running Away? Isn't the Wet Male Lead a Good Boy?

Wei Shiwan's sky collapsed. On the tenth year after being thrown into this world by an unreliable system, she suddenly learned that the male protagonist she raised had turned into a villain! So what can she do? ! She is also very helpless! Just do it, do it, horses and oxen are born to work! [Sober and calm elder sister x dank dramatist little wolf dog] "If the only option to go home is to kill you, then I'm sorry but I have to kill you." "Okay, then it's no big deal if I die for you."