How I found it that i am the villainess sidecick,

When a book was dropped into her lap, the demon sect queen subordinate discovered the world she lived in was described in it. This book said that after she sacrificed herself for the villainess the demon sect queen, the demon sect queen's younger brother blackend and attempted to kill the heroine,however the younger brother was one of the love interest of the female lead. The demon sect queen subordinate,: Lan zhan, this subordinate wants to know why you wanted to kill the heroine. Lan zhan was silent. Su jin: If you refuse to speak, this Devil queen subordinate will force you to speak! Lan Zhan: … Su jin: What are you blushing for?!