One day, a courier arrived by cash on delivery. I only have 1000 yen in my wallet and I don't have enough money. The troubled daughter-in-law pulled out 10,000 yen to borrow a little from her husband's father's wallet that she happened to see. I should have said no to my father-in-law before borrowing it. My father-in-law, who was watching the situation, was furious because he decided that his daughter-in-law's heartbeat was stealing the reason why he was running out of money recently. And....