Koichi is a man the world envies.
People have the tendency to envy others' happiness.
One day, I want to acquire wealth and fame that anyone would envy.
This word consists of kanji with hiragana attached. Because the hiragana ends with an う sound, you know this word is a verb. The kanji itself means envy so the verb version is to envy someone.
Since this word consists of a kanji with hiragana attached, you can bet that it will use the kun'yomi reading. You haven't learned this reading yet, so here's a mnemonic to help you:
You're really starting to envy those uranium Yankees (うらや). That's the new Yankees team hopped up on uranium that were created in a lab. Even though they're gross and hulk-ish, they're really good at baseball, so you're jealous of them.