Yesterday's Detective

In this world, few people learn from the past. What if consciousness gains the ability to travel back in time by touching objects? Three years ago, a man made the decision he regretted most in his life. Now, a madman decides to spend the rest of his life paying it forward. —————— This book is also known as "Ha Jiyan and Ha Jiye are double detectives", "Whose detective cheated", "There is a hole in my detective brain", etc. Not recommended for readers with normal mental state to watch.