Immortal Dad in the City

After witnessing his parents killed by a mysterious figure in childhood, Qin Zhuo spent 20 years as a wandering cultivator, vowing revenge. Preparing to break through to the Nascent Soul realm to avenge them, he is in the midst of a tribulation in the city when he encounters Qin Yunying, who was drugged by Zhao Tianchen and suddenly burst into his room. After a night of passion, Qin Zhuo loses his cultivation, having his spiritual energy drained by Qin Yunying, causing his realm to drop to that of a mortal.