The Eldest Princess Is Too Cruel

[Not reborn, not time traveled, the heroine is cold on the outside and casual on the inside] [No cp + micro heartthrob + multiple male protagonists] Shen Qingli was favored by thousands of people as soon as she was born. She was named the eldest princess of Fengyin Kingdom and could go to court. She also had a half-grown younger brother. After her mother passed away, she asked her to guard the mausoleum for him. She was away for three years, and then was recalled to the capital by her father. After that, he started a life of fighting this and that. When he had nothing to do, he would read the story book and tease the little wooden secret guard. But as we fought, something seemed wrong... Wait! Why are there suddenly so many men in her princess mansion?