The reborn elder sister has gone crazy with killing, and there is a crying monster behind her

The heroine who travels through a book + sweet pet + sister control + loyal + growth type starts from the hell of traveling through a book. She is about to be killed as soon as she arrives, but her heroine sister comes to save her with a big knife! She just wants to hide behind the murderous heroine and be a little transparent to finish the plot, but why do the bad guys bully her? And drag her into the messy conspiracy? She really knows how to thank! But it doesn’t matter, she will cry, sister, sister, someone bullies me! Shen Qiuchi: @Sister, don’t be afraid, sister is here! Sister wants the stars in the sky, let sister think about how to get them! @Others (pulling out a big knife) A bunch of idiots, dare to bully my sister? How many lives do you have with me...