There are many "heroic deeds" in Yan Yun Shiliu Sheng, which can be understood as side quests, some of which are hidden and can only be discovered at specific locations. They do not affect the main storyline but help enrich the understanding of the game's world and setting. The Twelve Years of Gratitude and Revenge mission is one such quest, and some players may not know how to complete it. Below is a simple explanation.

The story roughly revolves around helping someone, only to end up causing disaster for oneself, leading to the massacre of an entire village. In the plot, Zheng E saves Shen Yilun, but this leads to Shen Yilun's brother learning about the village having food supplies, and subsequently raiding the village for food, resulting in a massacre.

Later, Shen Yilun helps save Zheng E and kills his own brother. However, Zheng E's sister dies as a result, leading Zheng E to harbor deep resentment towards Shen Yilun. Therefore, in the plot, Zheng E imprisons Shen Yilun and has himself surgically altered by Luoshen to look like Shen Yilun, secretly transporting food to the Ghost Market to aid the people of Kaifeng.

The enmity between these two individuals is very complex. Zheng E wants to use the "Morning Bloom Evening Fall Flower" to create an army of dream puppets for revenge and also to resurrect his sister. In the plot, the Morning Bloom Evening Fall Flower is about to erupt, turning everyone nearby into dream puppets once it does.

It can be said that it is quite tragic for him, as saving someone indirectly led to the death of villagers and family members, leaving him resentful of both others and himself. Actually, similar plots are quite common in Yan Yun Shiliu Sheng, much like in other open-world games where various choices lead to different outcomes, sometimes with good intentions resulting in bad consequences.

The above is an introduction to the Twelve Years of Gratitude and Revenge mission guide. This is one of the few linear missions in Yan Yun Shiliu Sheng, requiring little thought from the player and no complex puzzles. Players just need to follow the plot guidance to understand the cause and effect of events. If confused, there is a side quest in the nearby village that can help clarify the story.