Green Dragon Warrior in Chinese / Japanese...

青 is nature's color and can refer to forest green, greenish-blue, or the darkest of greens.

青 and color represent nature, youth, and young people.

In the same way, we refer to green bananas and the rookie being green, the same is true in Chinese and Japanese, where, in a certain context, this can mean immature, unripe, or young.

In Japan, this can also be a female given name “Haru.” It can also be used as a given name (for either sex) in China.

靑龍 is a title that can mean blue or green dragon.

The first character can mean blue, green, azure, or celadon.

The second character means dragon.

This is mostly a Chinese title (especially in Buddhism). It will be understood but less commonly used in Japanese and Korean.

爐火純青 means “[The] furnace fire [has become] pure green.

This is an allusion to Daoist alchemy. figuratively, this speaks of an art or technique brought to the point of perfection.

青梅竹馬 means “green plums and hobby-horse.”

Figuratively, it means “innocent children's games,” “childhood sweethearts,” or “a couple who grew up as childhood friends.”

This phrase may sound a little strange as it's a kind of Chinese proverb or idiom. It makes much more sense in Chinese than in English.