Nineteen year old Park Haerin was up for the job of babysitting a five year old. However, the magic behind this was that the child she had to stay with wasn't five years old, but rather a twenty year old handsome Oh Sehun who was suffering Autism. Babysitting Oh Sehun made her go crazy. Sometimes irritating, annoying, tired and other times, happy. As she begins to understand the habit of a five year old, she realises her feelings for the innocent boy is perhaps 'love'.

But what happens if she finds out that Sehun was disguising himself to cover up his past?

 What happens if the boy she fell in love with wasn't the five year old child but the twenty year man?  

Should she be happy or sad? 

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My Handsome Fosterling

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