I Transformed into a Vicious Female Supporting Character Through a Book, and the Male Protagonist Can't Live Without Me.

[No system + time travel + sweet pet + not brainless] Jiang Yao traveled through time and became the vicious female supporting character in the novel. In order to save herself, she decided to hug the male protagonist's thigh tightly. However, there seems to be something wrong with the male protagonist. He always stares at her with a mysterious aura in his eyes. Jiang Yao began to wonder if the male protagonist was hiding any secrets? ? Could it be...