Add Some for a Moment of Pleasure and Pay Off the Debt to the Crematorium

My sister is critically ill and the medicine costs three million. Chu Fan signed a contract of betrayal with destiny in exchange for a bonus panel. Others add a little more brainlessness to become stronger, but he adds a bit more licking the blood with the tip of a knife - every bit of strength is a usury, and the interest is deducted from memory to life span. What's even more cruel is that his sister's name is written in the guarantor column. It's okay to pay back debts. Those who can set a price must also be reckoned with.