The Japanese manga adaptation of the mega-hit Chinese fantasy novel "Mo Dao Zu Shi".

It was the time when the Wen clan was extremely tyrannical and the people suffered greatly. The masters of the cultivational sects, including the Gusu Lan clan, the Yunmeng Jiang clan, the Lanling Jin clan, and the Qinghe Nie clan, joined forces in the "Sunshot Campaign" to defeat the Wen clan.
The Yiling Patriarch, Wei Wuxian, made a great contribution in the "Sunshot Campaign". However, the demonic arts he mastered were so powerful that he was feared and slandered by the people, which eventually led to his own downfall.

Then thirteen years later Wei Wuxian, who was supposed to be dead, is brought back to life through the "sacrificial ritual" and is unexpectedly reunited with his soulmate, Lan Wangji. Wei Wuxian tries to leave without revealing his true identity, but Lan Wangji, who was deeply disappointed in Wei Wuxian in his previous life and had parted ways with him, for some reason refuses to let him go...
As they pursue the lingering mystery of their past lives, Lan Wangji's hidden feelings begin to emerge, and their relationship changes once again. The story of the cheerful and unrestrained Wei Wuxian and the calm and disciplined Lan Wangji dates back to their first encounter in their childhood.