Hayate and Nagi didn’t end up winning the Freestyle Marathon. The master butler at the Sanzenin estate, Claus, was promised by Nagi that if they lost, Hayate would resign. However, the other maids requested that Hayate be given another chance since the master butler is responsible for his subordinates' shortcomings. Therefore, Claus gave Hayate another chance by taking a training course, “Tiger Butler’s Den”
I'm guessing you mean that urban legend that was popular not so long ago - the one about the man on the train.
Creo que eso era la leyenda urbana del 
hombre del tren que fue popular hace un tiempo.
Acho que está falando de uma lenda urbana
meio recente — daquela do homem do trem.