noun
fine young man; agreeable youth
Describes a young man who is pleasant, upstanding, and generally well-regarded. Often used in introductions or character descriptions.
彼は本当に好青年で、誰からも好かれる。
He is a truly fine young man, liked by everyone.
面接に来たのは礼儀
The person who came for the interview was a polite, agreeable youth.