Spring Day (soulmates forever)

There were 7 teenage girls who is like a soulmate. They loved each other and share moments together. On 2013, there was a tragedy of a ship sank on the way to destination that happened at the sea which some of their friends was on board and died. They can't accept about the the fact that they need to be like this.. They make a song for them and.. Read it all in the novel with feelings that will make your heart flutter and pain..