"Thank you, Mr. Mu!" Afei exclaimed, overjoyed upon hearing this.
He had seen Mu Rufeng not giving a tip before and thought Mu Rufeng had changed his ways, which left him slightly disappointed.
Unexpectedly, Mu Rufeng covered the expenses for everyone on the train, including the staff, and that indeed meant spending a lot more money than just giving a tip.
Without going into detail, accommodating so many passengers on the train would certainly cost several millions.
However, since Mu Rufeng had the Black Gold Card, he could get a 40% discount, burning through a lot of money all at once.
That means, it's unknown if Mu Rufeng's 10% discount coupon could be used with the Black Gold Card.
For Mu Rufeng, several millions wasn't a small amount, but the money on the Black Gold Card couldn't be refunded, and no matter how he spent it, he probably wouldn't be able to use it all up.
He needed the help of the Bloody Train, and he had to stay there for at least another day.