Solving the Case is Slightly Bitter, My Sister is Super Sweet.

Summary

In a storage room, Lin Xuan meets a middle-aged man who once was a mercenary. The group around them has retired, but Lin Xuan suspects an overseas attack against them. He plans to leverage revenge as a strategy, using the dark web to track down their enemies. Meanwhile, a young man wakes up tied up and realizes he’s in danger. Lin Xuan tortures him to extract information about his boss, who is linked to the dark web. The young man, terrified, reveals the nickname "Ghost Brother" but claims not to know more, leading to further torment from Lin Xuan, who insists on getting the truth, revealing the merciless nature of their operation.

Full content