Novokitezhgrad Headscarf, Glasses, Bowler Hat, Corsage, and Suitcase Owners In Genshin Impact

There are five items you must find and return to get the What Was Found, Returned achievement in Genshin Impact: Someone's Headscarf, Exquisitely Crafted Glasses, Old Bowler Hat, Delicate Corsage, and Finely Crafted Suitcase. You can get a hint about the item's location by speaking to the owner, but that'd require you...