The original title is "The Death of My Sister" and "On the Self-cultivation of Sister Controllers".
Teijin's world is chaotic, violent, and bloody! In order to find out the real cause of his sister's death, Feng Zuo, who regained his status as an emperor, and his friend Chi Shuangyang, who was an ordinary person, stepped into the world together. In this crisis-ridden world, they experienced being framed, betrayed, and suspected... The two people who always trusted each other worked together to overcome difficulties one after another, and finally knew the truth of everything.
But they don't understand that some truths cannot be revealed.
PS: This article has a plot, two male protagonists, no female protagonist, not Danmei, not Lily, there is CP, but there is less description of the emotional part.