In 1945, as the War of Resistance Against Japan comes to an end, the Japanese army secretly transports a large quantity of poison gas bombs to China. Ou Xiao’an, the ace special agent of the military, is injured while escaping from the "810" poison gas research institute. He is inadvertently rescued by Tan Moqing, another agent. When he wakes up, he discovers that he has lost nearly four years of memory. As they work together to expose the Japanese conspiracy, Ou Xiao’an and Tan Moqing frequently join forces, ultimately unveiling the identities of the Japanese spies while also revealing their own roles as underground party members. However, a greater crisis looms ahead; they remain unaware of the whereabouts of the "810" research data and the hidden gas bombs. Faced with numerous dangers and obstacles, how should this group of lonely yet brave individuals advance and fight courageously?
Wei Zhi is reincarnated as a phoenix, and Yan Yue, the male protagonist is the Sun God. They go through hardships and finally break the destiny of how the "phoenix nirvana will shake the three worlds" and rewrite their own story together.
Su Jiu'er, a female constable of the Qian country who is scared of cold, and Han Zheng, the warm young master of the Qi clan, meet because of a strange murder case concerning the relationship between the two clans and form a partnership of two people with a huge warmth difference. They work together to find the truth and dissolve the crisis their families are facing.
Liu Shao initially leads a carefree life of a wealthy heiress, but accidentally gets embroiled in a battle between the immortals and demons, thus unraveling the past and present romantic entanglement between her and Lu Li, a mysterious cloaked immortal.