The Doomed Sidekick's Revenge

As the Heavenly Dao's own daughter, Seraphina Sterling has no shortage of good fortune. Because she is too difficult to manage and always rewrites the great worlds at will, she is thrown into three thousand small worlds by an angry Heavenly Dao to atone for her mistakes, accompanied by a whiny little system. In these small worlds, she takes on the roles of various cannon fodder female supporting characters, outsmarting villains and saving the original hosts along the way.