Taking My Brother's Place as a General, I Mistook the Ruthless Emperor for a Delicate Sickly Type

[Woman disguised as a man] + [court power struggles] + [rescued big shot] + [two powerful leads doting on each other] + [real and fake yandere] After transmigrating, Shen Yue became a doomed noblewoman whose entire family was about to be executed. To save her family, she hid her feminine clothes, put on armor, and took her fallen elder brother's name. She entered the capital, a den of vipers, and became the youngest deputy commander of the Imperial Guard in history. Everyone waited to see how the old foxes at court would devour the Shen family's “sole heir.” At her most desperate moment, she bound herself to the [National Destiny Sign-in System]. From the start, she signed in at the Martyrs' Shrine and obtained the [Art of Commanding Armies] and [Peerless Swordsmanship]. From then on, the capital lost a delicate young lady and gained a “Little King of Hell” who struck fear into every official. On her way to the capital, she casually saved a beautiful “poor thing” named Feng Xi, who had lost his memory and was disabled, and was even prettier than a woman. He was soft and helpless, doing the laundry and cooking, warming her bed and making it up. He looked at her with adoration and dependence, as if she were his god. Shen Yue's heart softened. She thought she might as well protect him for the rest of his life. She killed corrupt officials, and he handed her the knife. She fought the powerful, and he came up with plans. She thought she was raising a gentle, harmless Persian cat. Until the day the throne fell and blood stained the Golden Hall. The supposedly long-dead exiled Crown Prince Xiao Jin, who had once conquered the land through slaughter and was merciless and ruthless, returned over mountains of corpses. With his own hands, he draped the imperial robe over her shoulders. His eyes were filled with unrelenting madness and possessiveness, yet his voice was still as soft as ever: “Yueyue, I'll give you the empire, and you... give yourself to me too. From now on, let me protect you, okay?” Shen Yue: “...” Is it too late to stuff him back where he came from?!