

About
Ling Changfeng is an honourable general and has been in a passionate marriage with his wife for the past 3 years. However, a strange disturbance hits their city on their third anniversary, and "madmen" run wild in the town, attacking innocent citizens violently. Ling Changfeng leaves his wife behind to protect the people but when he returns, finds that his wife has been infected by this phenomenon. He refuses to reveal this as he knows that anyone who turns mad will be killed. He keeps her by his side in secret while trying to solve the cause of this frightful phenomenon.
Cast
Seasons
Episodes
Season 1

Nightmare, Metamorphosis
A group of enchanting Butterfly Servants, like ferocious beasts, infiltrates the city and attacks the commoners. Ling Chang Feng, together with the Ministry of Security and the Imperial Guards, bravely protects the people. However, Tang Qian Yue, who is sent to seek refuge at Fengyue Pavilion, is attacked by Butterfly Servants and left lying in a pool of blood. Startled awake, Tang Qian Yue realizes it is still early on New Year's Day. The nightmare has been so vivid that she nervously lives through this day, which holds great significance to her over the past three years.

So Close
Ling Chang Feng found the Butterfly Mark under the captured Butterfly Servant's collarbone. Tang Qian Yue realizes Ling Chang Feng's change in attitude and remembers what happened last night. She pulls her clothes to one side and found the Butterfly Mark on her collarbone as well.

Yilan Butterfly Slaves
Ling Chang Feng reminisces about his marriage to Tang Qian Yue. At that time, Tang Qian Yue doesn't have any Butterfly Mark on her body, and she is visibly anxious and confused. Why does the vanished Butterfly Mark reappear? Ling Chang Feng deduces that the night raider, based on various characteristics, is a Butterfly Slave who has been infected with the Butterfly Pest of the Yilan Tribe. Once someone becomes a Butterfly Slave, they lose all their mental faculties and become extraordinarily aggressive.

The Earliest Memory Starts from You
In the prison cell, the Butterfly Slave, who seems to have died, suddenly comes back to life. Ling Chang Jin's guard, Kun Qing, promptly arrives and informs Ministry of Security's guard, Jin Ming, that the Butterfly Slave has merely been feigning death after being wounded by a sharp weapon. To completely kill the Butterfly Slave, the body needs to be burned. Ling Chang Feng stabbed Tang Qian Yue with his sword to momentarily shock her. Upon regaining consciousness, Tang Qian Yue confesses to Ling Chang Feng that she has always been a Butterfly Slave. However, she is different from the others as her mind was still intact.

The Bell
Tang Qian Yue fears that Ling Chang Feng will abandon her once again, so she stays by his side at all times. Ling Chang Feng has no choice but to bring Tang Qian Yue back home. It is then that Tang Qian Yue finally manages to utter her first words, albeit hesitantly. Ling Chang Feng cares for Tang Qian Yue like a family member, summoning Madam Hong to assist in bathing the dirty Tang Qian Yue and tending to her injured foot with great care.

Wind And Moon
As days pass, Tang Qian Yue seems to have blended in with the women of the city and grown into a respectable lady. She waits for Ling Chang Feng to come home every night. Reaching the age of marriage, living together with a single man is bound to raise suspicions. Although Tang Qian Yue doesn't mind, she overhears that the commander is urging Ling Chang Feng to fulfill his engagement with the daughter of the prime minister.

Unfading Love
In fear of potentially harming Ling Chang Feng, Tang Qian Yue decides to consume Mokui soup to rid herself of the Butterfly Curse. She endures seven days and nights of excruciating pain. During the seven days that Tang Qian Yue is missing, Ling Chang Feng searches the entire city. When he returns home in a state of despair and discovers that Tang Qian Yue has returned, he finally experiences the joy of regaining what was lost and requests that she stay by his side as his wife.

Uncertain Way Ahead
Ling Chang Jin, deeply resentful due to his elder sister's death, holds a grudge against Yilan Butterfly Slaves. With the assistance of Ling Chang Feng, he captures the Yilan Crown Prince, who had plotted the New Year's Eve attack. From the Yilan Crown Prince's confession, Ling Chang Jin learns that Princess Bao Zhu possesses Kirin Blood that can nourish the Butterfly Curse.
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