Due to an honest mistake from a friend, she quit her promising job. Grandma's sudden "broad sea and sky" brought her back to her long-lost country town. The boy's smile on the hibiscus tree is like the white cornflowers swaying in the wind. The girl named Pingting by her grandma unexpectedly fell in love with each other and became like old friends. The tranquility far away from the hustle and bustle of the city is just like the love song of youth with the clear spring in the stream.