Drink

Seeing that Di Tou was in thought, Mu Di Bai stroked his chin twice in satisfaction before sitting back down. After idling for a few moments, Mu Di Bai grunted and said, "Alright, alright, don't think about it anymore. If this sort of thing can be understood in a day, can it still be considered a core principle?" 

"Oh." Feeling a headache coming on as his thoughts continued wrapping around one another as he attempted to grasp the whole thing, Di Tou didn't insist and returned his attention to the old man in front of him. Taking a closer look at Mu Di Bai, without considering the shock and his own impressions caused by their first meeting, Mu Di Bai didn't look particularly impressive. He looked slightly slovenly and tired, but not in a messy way. His features were rather plain, and all in all, he looked like an ordinary old man, nothing special at all.