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.
It's doubtful whether Koichi actually can't eat meat.
Mr. Tashiro's behavior on that day is questionable.
I like Mayor Fugu but if I was asked what he could do for our community, I still have my doubts.