A butterfly cannot fly across the sea because its wings are too fragile and the sea is too vast.
This is a story about a butterfly flying across the sea. Gu Man and Lin Yi met six years ago because of a misunderstanding but also separated because of a misunderstanding.
Six years later, on the day when the first snow arrived in Y City, Lin Yi returned to the city where Gu Man lived. The well-known doctor Lin Yi met Gu Man again, a college counselor. However, the misunderstanding from that year had not yet been resolved. Gu Man already had a fiancé who was making waves in Y City. The love between Lin Yi and Gu Man is like a butterfly trying to fly across the sea. Although the journey was full of wind and rain, the butterfly still did it in the end, just like Lin Yi knocked down Gu Man.