Passed Through the Fetus and Became the Second Lady of the General's Mansion

[Ancient Romance+Double Strong+Group Favorite+Second Female with System] Let me tell you a secret secretly. I am Gu Yuanluo, the daughter of a general who was transported from a modern womb into another world. As for how I came to this world, it's a long story, so I'll keep it short. I was the ex-boyfriend of my best friend... Jun Hewang was seriously injured due to an accident and accidentally fell into the general's mansion. He happened to be rescued by the second daughter of the general's mansion who came back from the border. The two have been involved ever since. Jun Hewang needed a princess, and Gu Yuanluo needed a backer, so they reached an agreement with Jun Hewang, the second prince of Guangxia Kingdom. They signed a contract to be a fake couple. Why not just because the General Mansion had too many enemies and needed a backer. Gu Yuanluo: "Jun Hewang, I may not be able to fulfill the agreement I made with you for the time being. I am the daughter of the Gu family. To be respected by someone is to fulfill the responsibilities of the Gu family. If I can come back alive, I will definitely marry you. If I don't come back, I wish you peace and joy for the rest of your life." Jun Hewang: "I'll wait for you to come back. Don't worry, you won't be at the border for too long. Wait for me to pick you up." It's just that Gu Yuanluo found that her best friend had also traveled through time, but she didn't know why she didn't want to recognize her. Although she didn't know why, Gu Yuanluo always believed that she had her own reasons. (The second female lead, Jun Siwan, reached the peak due to guilt and was found by the main system. One of the three thousand worlds was randomly arranged and asked her to attack Gu Cangming in it. As long as his favorability value reaches 100, she can successfully save the seriously injured and dying person if the attack is successful. If the mission fails, she will be wiped out.)