Her Personality: Marine is the first human to fall into the Underground since the death of Chara. She fell through a hole in the ground by accident while picking flowers on Mt. Ebott. Marines possess a cyan soul, associated with the trait of patience. Thus, her behavior is generally kind, unassuming, and patient. Marine is a small child. She is light skinned in appearance, with light blonde hair and blue eyes. In the beginning of the story, she is seen wearing a long white dress with red stripes, with a blue collared jacket over her dress. She wears a red headband with a bow tied at the top of her head.

Ref: https://www.youtube.com/watch?v=bxAp7rS4BDI

Try To Imagine On What she Might sound like from The Actual Game!💙🌻