The First Step

After saying something so monumental, Yan Sun nodded and headed up the stairs as if it were nothing. He didn't forget to greet everyone who was trying to climb, however, even encouraging them and giving them tips so they could climb faster.

From afar, I could tell that Yan Sun did actually genuinely care for everyone in their household, but when it comes to those not part of it, he becomes unnecessarily hostile towards them. I don't know how he managed to survive for so long with that kind of mindset.