Time Travel: Not Being Yu Ji

Who is whose next reincarnation? Who will be heartbroken next? She traveled through time and met him in the forest, and from then on she was forever bound to you. He is the descendant of the Sword Saint, but he doesn't know anything about the world. When he meets her, who is as beautiful as a fairy, from then on, "I will use my three lives to exchange for your happiness for the rest of your life!" Her heart broke for him, and he laid down his life for her. However, she is the imperial concubine, the wife of a general, and the concubine of a prince. Are they competing for the world or for beauty? In troubled times, he and she made a promise to "hold his son's hand and grow old together with him"...