In the Beginning, I Was the Prince's Bridal Chamber, and I Managed to Become the Great Emperor!

[System + Sign-in + Gou + Pretending to be a pig and eating a tiger + Upgrade and development] The protagonist Xiao Fan is a newly graduated Chinese college student, and his soul has traveled to a new world as a newly deceased baby. He became a scholar at the age of thirteen, passed the examination at the age of sixteen, and became a tribute scholar at the age of seventeen. Then he was selected by the prince and became the prince's attendant. Prince Qin Xuan was engaged to Jiang Yuli, the granddaughter of the general who ruled the country. As the wedding was approaching, Prince Qin Xuan approached Xiao Fan and asked Xiao Fan to take his place in the bridal chamber. Xiao Fan was shocked, Prince Green, do you want to die? The prince had no choice but to tell him that he was a woman. Her real name was Qin Xuan, and she was extremely beautiful. Knowing the secret, he would die if he didn't agree, so Xiao Fan could only agree. At the critical moment, the system finally awakened. What he had was the supreme sign-in system, which claimed that there was nothing that could not be obtained by signing in. "System, can I sign in and get another system?" "System, can I sign in and get a universe?"