I found a huge passbook in my mother's drawer, with a note inside for my precious son Haohao. But I am an only child. I have been the only child in the family for 23 years. My first reaction was that this was not my family's bankbook. But the person who opened the account did indeed write my mother's name. The earliest deposit was 440,000, which happened to be the day I was born. On the same day every year in the future, she would deposit the same amount of 440,000 into the card on time. Until now, the total balance has reached 10.12 Million. I couldn't help but feel a chill on my back.