This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
My favorite idol was selected to be a one-day train station master.
Because the stationmaster and Mr. Kawada are best friends, I heard that he secretly gets discount on fares.
Oh my God! Did the station master just spit on the train? Did you see that?