A Diagnosis Written to the World

"Live with ease and die happily." This is the life creed of Song Yan, an ordinary high school student. It was such an ordinary person who was involved in the dark side of the world one day. Twisted monsters, whispers of the abyss. These things kept tormenting her, and in order to survive she could only continue to explore the inside of the abyss. But she didn't know what was waiting for her ahead...