It's up to Me to Settle This Account

Shen Du is a claims investigator, and his job is to investigate whether the "accident" is really an accident. Until one day, he saw the red thread on the dead body. That is the line of cause and effect, debt, and fate. He can see everyone's karma account and know who owes whom and who should repay the debt. He thought he was the chosen one, until he discovered— My name has already been written on the dead account. This is a story about cause and effect. If you change a cause, a new effect will take its place. If you save one person, you may kill ten others. Conservation of cause and effect, no exceptions. Unless... You can find the line beyond the bandha.