Correct

血债

/ xuèzhài / 
Strokes

Definition

debt of blood (after killing sb)

Example

As a Noun

blood debt/scores

1
Yǒu
有
xuèzhài
血债

have blood on one's hands

2
Tǎohuán
讨还
xuèzhài
血债

demand payment of a blood debt; make sb pay for his bloody crimes

3
Chánghuán
偿还
xuèzhài
血债

pay debts of blood