"System" + "Urban Brainstorming" + "Suspense" + "Inference"
Lin Beichen was burdened with a blood feud that destroyed his family and his life, but when he was tracking down the murderer, he accidentally bound himself to a strange system - a bug that relied on blood-sucking to upgrade! Something happened as soon as the system was bound, and the "Host is dead" prompt almost sent him away.
When he discovered that the mysterious organization "Light Management Department" might be hiding clues about the enemy, he was about to infiltrate, but he was involved in a serial murder case involving strange creatures. The deceased were all evil men with a record of evil deeds, and there were always strange invisible figures appearing at the scene.
While fighting and cooperating with the bug system, he was dealing with the lighting department, only to discover that the murderer was actually a child with a tragic past, and there was an even more shocking conspiracy involved behind the scenes...
See how Lin Beichen breaks the boundary between hatred and justice and fights his way through the trap of the system and the pursuit of monsters!