Even though Hu Lie had already declared his intent to assist Chu Mo as much as he could now, in hopes that Chu Mo would help the Tiger Clan in the future once he became powerful, this was a sort of investment for Hu Lie. It seemed that with this, Chu Mo could justifiably accept Hu Lie's assistance, but Chu Mo didn't want to owe him too much either!
Hu Lie might be magnanimous and enthusiastic, but Chu Mo couldn't be carefree inside.
Owing too much to someone could eventually lead to massive karma, and no matter when, the thoughts at the bottom of his heart would never be fully clear.