*Author's POV
Of course, Emperor Shin cried of his daughter died and Yoongi, you, Taehyung, Bogum went back to Joseon safely. You went straight to your 'long lost ' father with Yoongi. Yoongi told him everything that happens and he was on cloud nine to finally find his lost daughter. Your stepmother is also happy about it. After that, you and your stepmother getting along pretty well so fast. So is Taehyung.
6 month past and you deliver twin boys. You and Yoongi name them Joonsung and Sungjae. Taehyung, he decides to stop his duty and start a new life and Yoongi let him since he already works for Yoongi for a very long time. Why not let him go?
10 years later, the twin told their father about the path they want to go. Joonsung wants to include in the army while Sungjae formulates a strategy for every war. Sungjae also said that he wanted to be the next the Ministry of Defence which makes Yoongi and you feel very proud of them. Your life just becomes as perfect as ever. Found your real family, unexpectedly married to the emperor, having a loving, caring and cute kids. What else? Your life perfect, and you never expect it to happen at all.