The mermaid girl, Bao Rourou, embarks on a journey to find her father, Hai Ren, but becomes entangled in a murder mystery. Through a twist of fate, she crosses paths with the gifted investigator Gu Xinghe. Forced to become Gu Xinghe's assistant in order to uncover her father's whereabouts, Bao Rourou finds herself caught in a web of intrigue. As Gu Xinghe probes her mermaid identity to find a cure for his illness, their relationship becomes a blend of tension and camaraderie. In a gripping struggle, the duo teeters on the edge of victory and defeat. The naive girl unwittingly becomes an apprentice, while the cunning detective unveils a plethora of clever tricks. Amidst this intricate dance, the seeds of love quietly sprout. A case-obsessed man encounters a mermaid girl, and this peculiar pair joins forces to solve a series of perplexing mysteries. Along the way, they gradually set aside their prejudices, offering mutual support and healing to each other. With each unveiled truth in the cases they investigate, they discover a profound conspiracy linked to Hai Ren's disappearance. With the help of friends Yi Qifeng and Lu Qing'er, they delve into danger, thwart the conspiracy of the Daye Dynasty's advisor, Feng Xuanzi, and the Crown Prince, and rescue the long-tormented Hai Ren. As they promise a lifetime together, an impending crisis looms, challenging their love once more. How will this devoted couple face the approaching danger?...

It tells the campus story of a modern female college student who accidentally traveled back in time to an ancient academy. A lot of funny stories happened between the protagonist Wu Wanwan who disguised herself as a boy and her schoolmates Tang Wenqi and Qi Shan. They worked together to fix the unequal distribution of education resources in ancient times. They also fought inequality, founded private academies, prevented class discrimination, and even took in female students. The academy didn't require tuition so that everyone could get an education. They overcame every obstacles along the way, and everyone was touched by them and recognized their ideals. Modern concepts of education were successfully introduced to ancient academies....

In a kingdom where martial arts is highly respected, Bai Xi Yao, the lord of the Long Cha Sect, and Ling Hao Xian, the leader of the Feng Qi League, participate in the kingdom's treasure hunting battle. During the battle, an energy explosion of the Heavenly Book Order caused the two rivals to switch bodies. Forced to work together, Xi Yao and Hao Xian come to understand and respect each other as they deal with the various crises in their sects. Little did they know that the two who possessed the Order of Heaven had already been targeted by the Holy Light Society, and they now begin to sense a mysterious and evil force secretly arising....

Ye Yan, a female doctor of modern medicine, returned to ancient times and became Ye Yan, the daughter of the general's mansion. After waking up, Ye Yan meets the powerful fiancé - King Yu. Ye Yan found out that King Yu was poisoned, and the two started the daily mode of you detoxify me, and I will support you....