Your father just married Aland's mother, because your biological mother was caught cheating on your father.

One night you and Aland were sitting on the living room sofa, Aland was playing around and ignoring you, you deliberately called him 'daddy' to attract Aland's attention, he felt happy and his heart melted, but Aland didn't want to admit it.

"Don't call me daddy"

he said coldly and continued playing, you held back the tears that fell from your eyes, Aland just sighed.

"huh... what's wrong, brat?"