Luke wasn't a hermit who spent years holed up in a room and meditating. The reason he wasn't at a higher level was because he had long used all of his potential and there was no hope for future breakthrough. The early stage Void Refining Realm was the highest that he could reach.
Self-aware, Luke had started to spend more time in the real world. He was well aware of the recent trends and had even heard about this new drink called coffee, which had gotten unusually popular among the low-level cultivators.
And he absolutely despised this change. Whenever someone mentioned coffee in front of him, they would incur his displeasure.
Lyka was also aware of her grandfather's preferences, hence in the next moment, her face turned strange, and she looked at the white porcelain cup with a peculiar look in her eyes.
Although caught in a difficult situation, Luke decided to put aside his preferences for a moment and graciously accepted the coffee.