I Seem to Be Wearing a Fake Book

He was originally a humble gentleman, but after meeting her, he realized that even gentlemen can sometimes be uncontrollable. She was originally an idler in the world, and at most, she only thought about doing something for her brother who was an emperor. After meeting him, she realized that besides family members, there were other people who were important. The sinister and gentle young man VS the charming and immoral young lady. Female Protagonist: When I wake up, I change the place and have an extra bookshelf. Can I still play more? Male Protagonist: After a lifetime of searching, how can I let him go?