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11-year-old Chan Yi is looking after his lovely younger sister So Yi by himself ever since their mother left them to find her own future. Despite their desperate situation of being abandoned by family and neighbours, these kids try their best to carry on life. One day, a little puppy joins this small family as Chan Yi steals it from an old couple's kennel as a gift his sister's birthday. Especially clever, this dog, whose name is "Ma Eum", returns the love received from his new family with great loyalty and it seems as though their happiness would continue forever... only until a sudden accident brings them into collapse.

Min Ho, a music producer who is struggling to write a new song because of the lack of inspiration. He is told by his manger that he has to find love so he would have emotions to write a new melody. He then meets a Chinese tourist named Ling Ling. Min Ho is inspired by Ling Ling but due to their language barrier he decides to adds her as a friend on the mobile messenger app LINE to communicate with one another.