A bus left the Scarlet Devil Mansion; three people boarded at the start. At Hakugyokurou, one left and half a person boarded. At Yakumo-san's house, two people left; so how many passengers in total?
This riddle is horribly worded. Does how many passengers in total mean how many there were from start to finish or is it asking how many passengers are left at the end? Also, how the hell can you have half a person? Does the half person count as a full passenger or not? What the hell is a half-passenger even? Do they only charge half the price?