Yuu is a common name in Japan, often used for both boys and girls. It can be written with various kanji characters, each carrying different meanings, such as "reason," "superior," or "gentleness." The name is popular due to its simplicity and pleasant sound. In addition to being a name, Yuu can also refer to various characters in anime and manga, such as Yuu Otosaka from the series Charlotte. These characters often embody traits like determination and resilience, making them relatable to audiences.