Going back to the Company (2)

"Dad, even if you act like that," He warned as the tone of his voice deepened as well. "I won't allow you to keep on doing that to me. A promise is a promise."

That was the best reply he could give. He did not want his dad to dictate to him. All his life, he worked and did whatever his dad asked him to do in exchange for giving him food, shelter, clothing, and education. 

He had to be firm with his decision for this to work.

His dad's facial expression darkened as Seungwoo continued, "I will continue to work there for as we have agreed."

"What?!" Seungwoo's dad exclaimed, stood up, and clenched his fist. "You ungrateful child! I did my best to raise you and this is all you can do for me? Where is your gratitude? Huh?!"