仕事の虫

しごとのむし

noun

•

workaholic, person who is totally devoted to his work

仕	attend, doing, official, serve
事	matter, thing, fact, business, reason, possibly
虫	insect, bug, temper

かれ

しごとむし

い

、

しごと

いちばん

たの

にんげん

You say he is a workaholic, but you know there are some people who feel happiest when they're working