Imsa was a quiet and friendly individual. She became frustrated if people bothered her about her condition.
Imsa was a human who was afflicted with an unknown condition that turned her skin, eyes, hair, teeth, and nails green. At the start of the Tyranny of Dragons,[as of when?] Imsa sought to travel to Waterdeep in search of a cure for herself. She boarded a great caravan, which unknown to her was full of Cult of the Dragon agents transporting treasures for the Hoard of the Dragon Queen.