くだけた (translations)→ plain worldly
闇 (translations)→ blackness dark darkness gloom hole shadow
遠慮のない (translations)→ unaffected unstintingly
軽い (translations)→ breezy casual conversational exciting gentle little mild mildly minor neat petit quick slight small soft thrilling
打ち解けた (translations)→ companionable friendly mellow uninhibited