Ever since he was little, Sehun has grown attached to his sister. Although their age has a big gap, they was so close to each other. To Sehun, his sister is everything to him. Because of his father a business person, he always busy with his work. And for his mom,she already passed away when she give birth to him.So,his sister was the one that take care of him, teaching him do his homework, play with him, spending time with him, read him bedtime story before he asleep and any other things. He loves her so much.

What was going to happen when someday his sister dead and leave something precious to him?

Something that going to be his Everything...