The Longteng Continent is divided into three parts in this world, and it is headed by Dachu, Daegu in the west and Yeyu in the south. Although the countries were peaceful on the surface, secretly they all want to dominate the world.
Da Chu and Da Mi fought, Da Chu’s God of War General (Ye Junqing) fought a bloody battles, but Xia Yong, the leader of Da Chu, shot an arrow into his chest with an arrow, severely wounded and he fell to the ground. As he was falling, he called out Da Chu's Queen "Yao Moxin". Then he turned his sword and stood up to order his soldiers to kill his enemies, and retreated them, lured Xia Yong's army into the already ambushed canyon, and annihilated them with one swoop. He ordered his guard Benlei to kill Xia Yong with his sword.
The victory of this battle was passed to the Dachu Palace. The Dachu Emperor Ye Hongyi discussed the next steps with his high officials, and believed that the Dawei should not be pursued by the victory, which attracted the bewildered oriole behind, which caused the enemy to suffer. So, Ye Hongyi ordered Ye Junqing to return to the court immediately. On the surface, he wanted to hide his power and bid his time for another fight, but in fact, he wanted to weaken his military power for fear of further expansion. So, the seriously injured and wounded Ye Junqing headed back to court with his last few remaining soldiers.
Outside the huge gate of Da Chu’s palace Xiao Si (Yao Mowan's little sister) was seen running. Xiao Si held tokens to beg to see the her big sister- queen Yao Moxin.
The emperor Ye Hongyi was in the paolace hall, he was worried about the victory and how it would attract Weiyu to take action, which might lead to a situation where there might be a break in the peace balance. He ordered Prince Su Ye to return to Beijing at once. It seems like the king wanted his brother to come home to recuperate, but in reality this king only wants to cut down his brother's (Prince Su Ye) military powers.
Queen Yao Moxin is pregnant with a dragon heir (son of the Da Chu King). Yao Moxin was sitting on her bed talking to her unborn child Zhonger and joking with her maid.
Ye Junqing, received the emperor's order and was packing, but Ben Lei was unhappy with the order and was worried the king might hurt Ye Junqing on the way home. Ye Junqing worried about the queen Yao Mao, then they set to return to the palace.
The eunuch An Bingshan was sent by Ye Hongyi to give Yao Moxin a fetal medicine to drink and to convey a message to her. Yao Moxin stated that she understands what Ye Hongyi is trying to say, then drank the medicine. Just as the eunuch turn to leave, Yao Moxin suddenly felt a huge pain in his abdomen, and blood started rolling down her leg (which was a sign of miscarriage). The eunuch hurriedly left to inform the king. The queen's maid was yelling and crying. Yao Moxin skilled in herbal medicine so she knew she was poisoned. She knew at that moment that not only was her unborn child life is in danger, but her own life as well. Yao Moxin slapped her maid hard on the face to calm her down and told her to bid her to get help. Just then her little sister ran in and saw her sister in a pool of blood. Yao Mowan told her sister to leave, but she ran to her sister and grabbed her hand. Yao Mowan didnt want her little sister to get involved in this evil royal dispute, and fainted before she finished speaking. Then a blue light emerged from queen Yao Moxin's wrist and went straight into Mo Wan’s wrist. When she woke up, the two sisters had already exchanged bodies. Yao Moxin, who was now inside her little sister's body. She quickly ran away from the palace to go seek help. She wanted to go find medicine and find the truth to whom wanted to murder her and her unborn child. As she was running, a carriage pulled up beside with a group of men in black that they kidnapped her.
The black-clothed man’s carriage went up to the deserted mountain and decided to execute Mo Wan on the spot. The queen now in her little sister's body was screaming for help, just then Ye Junqing was passing by on his way home to the palace on his horse. The queen was screaming Ye Junqing's name and calling him to come save her. Ye Junqing upont hearing his name hurried over to the cliff and Mo Wan. He was shocked that this unknown woman called his name and knew him. He has never met Mo Wan and only knew of her older sister the queen. Mo Wan was attacked by one of the men in black and fell off the cliff. Ye Junqing also jumped off the cliff to save Mo Wan. The both got injured during the fall. Mo wan lost her memory due to the head injury and Ye Junqing's arm was injured. Mo wan even forgot what happened the day before, so Ye Junqing had to explained what happened. Mo Wan decided to follow Ye Junqing first. At this time, the big man who chased Ye Junqing came down to the bottom of the cliff. Ye Junqing was outnumbered by their enemies and was seriously injured.
Ye Hongyi summoned the solider known as a thousand faces to investigate who poisoned his beloved queen -Yao Moxin. The King was thinking that the eunuch was just a pawn and the mastermind is someone perhaps one of his three concubines that ordered this deed.
Mo Wan, with the help of a passing ox cart driver, saved the lives of both of them. Ye Junqing was seriously injured and unconscious at this time. Mo wan told the ox driver that Ye Junqing was her husband and that they were attacked and robbed by gangs. The ox driver's wife came into the room to give Mo Wan some medicine to drink which trigger her knowlege of medicine. She asked the lady to take her out to gather the medicine to make for Ye Junqing. Mo Wan also went to seek the help of an herbal doctor to come help wake up Ye Junqing. Mo Wan used her Yupei as a reward for the doctor to treat Ye Junqing because they had no money with them at the time. The doctor used the acqupuncture needle but he was not so skilled, so Mo Wan took over for him. The doctor said that Mo Wan was a woman doctor, and she didn’t need to see him for treatment. He told her she was very skilled for her tender age. But, Mo Wan had no memory of her medical skills, it was just slowly popping back in.