The Female Character Wearing a Book Just Wants to Hug Her Thighs

Chuishu, Shuangjie, HE Wearing books? It's okay, the first trick to survive in another world is to hug your thighs! Hug the hero's thigh? Forget it about killing your father; Hug daddy's lap? Too busy to take care of yourself, forget it; Hugging the heroine's thigh? It seems like I'm going to get cold... ? ? ? Have I traveled through time? ? ? Why is this plot different from what I thought?