Upon hearing this, Gu Wen eagerly nodded repeatedly and bowed respectfully, "I appreciate it, Fellow Daoist Chi Yu Zi."
This guy really knows which side his bread is buttered on.
Chi Yu Zi noticed the change in attitude and was somewhat speechless as she said, "I'm going to teach you now, but you must promise me one thing."
"What is it?"
Gu Wen looked puzzled. This wasn't the same as what they had initially agreed on; why the sudden increase in price? But this girl didn't seem so mercenary, did she?
Chi Yu Zi seriously and earnestly spoke, "If you don't manage to learn it, don't blame me, and if it wastes your time, you can't blame me either."
So, it's a disclaimer...
Gu Wen nodded in agreement, and then Chi Yu Zi, not wanting to be remiss, confirmed several times over.