Jinx Manga Chapter 69.5
Jinx Chapter 3 shows Joo Jaekyung winning his MMA fight. Afterward, he pays Kim Dan the agreed-upon large sum and confirms their transactional relationship will continue with future “sessions.” Dan immediately uses the money to pay off debts and get his grandmother’s medication, confirming his sacrifice is worth the financial relief.
Jinx Chapter 43: Kim Dan feels despair over his new exclusive deal with Joo Jaekyung. Choi Heesung then invites Dan to dinner, where he slanders Jaekyung and offers Dan a significantly higher salary to work for him. Dan refuses due to his exclusive contract, which angers Heesung, revealing his plan to use Dan against Jaekyung.