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.
Every once in a while Koichi will move in an unimaginable way while he's working.
Can you imagine having a job where you visit temples and shrines to collect their red ink stamps in a book?
If you want to learn how to vomit without sticking your finger down your throat, just imagine Koichi naked.