Also known as: 오렌지 버블껌
From Wataame Shoujo: Yoo-i is a very special girl -- she's like refreshing and fragrant orange bubble gums... A boy appears all of a sudden and becomes a natural part of her life, as natural as breathing air... His name is Joo-in. He says, "Do you know nuna? Nuna is.. my past, my present, and my future... You are like this ladder connecting me to this world..."
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