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The sick and weak Prince of the Da Qi dynasty was sealed, leaving only his shallow breathing. The prince, Huang Sang’s martial arts teacher Wu Nian opened the altar, in order to use the once weak prince to destroy the beloved son from the palace. However, he did not know before opening the seal of Wu Nian, that he was actually the most tyrannical prince recorded in history. The teacher went on his knee's and begged for Wu Nian's sanity to return. You are still my kind hearted prince! The teacher has made a grave mistake, releasing not the prince, but in his wake, a mad and heartless man.
In the 30th year of reign of King Taesun of the Gye dynasty, when the sickly prince had lost his soul and was close to dying, the emperor ordered the High Priestess Oh Yeon to perform Chohonsul (a ritual to bring the soul just before death back into the body). Because of this, the prince opened his eyes again but he doesn't even recognize his father and starts talking nonsense. It turns out that the soul that Oh Yeon summoned was none other than Bongmuye, the prince of the first dynasty! In the end, Bongmuye and Oh Yeon make a deal in which Bongmuye keeps pretending to be crazy and Oh Yeon keeps him as her husband for food while hiding his true identity. A well-matured soul after a thousand years— Bongmuye, what a great supplement! Oh Yeon is happy and thrilled every day.
The sick and weak Crown Prince of Daqi, Feng Jin Yan has only one last breath left so the emperor ordered the chaplain, Wu Nian to perform the opening altar practice and use the method of invoking the soul to snatch back his beloved son from the Halls of Hell. However, he did not know that after the practice, Wu Nian brought back the most tyrannical prince in history, Feng Wu Yu, who was from 900 years ago instead. The emperor cried at the feet of the chaplain "return my cute and soft prince to me!" Wu Nian replied with a serious fudge "the crown prince is not hurt, he just lost his mind, he will be cured after being treated by me". Instead of really curing the prince, in her thoughts, she was thinking "thousand years old soul, that will be a great tonic ah! Hehehe~".