Yantai (a coastal prefecture-level city in northeastern Shandong, China)

smoke bomb

thick smoke; heavy smoke

flue

black smoke

(literary, rare) chimney / (nonce word, poetic) tower of mist, fog pillar

period drama

a historical period where social disorder is so great due to war, disease, political disorder etc. that there is little or no cultural development; Dark Ages

anachronism

youth (part of life following childhood)