expression, noun
dream chaser; dreamer
Refers to a person who actively pursues their dreams or aspirations, often with a romantic or idealistic nuance.
彼は若い頃からずっと夢追い人だった。
He has been a dream chaser ever since he was young.
夢追い人として、彼女は歌手になるために上京した。
As a dreamer, she moved to Tokyo to become a singer.