A box of chocolate from her secret admirer but all there is a birthday..?

This is a story of two lost souls. Burdened by life and love. Will their hearts be mended as they find healing from each other, or will they lose the battle and destroy each other instead.  This kind of an angst fic. :) All Sowon and Yerin shippers, welcome aboard! :)   

Sowon don't like kids and kids also don't like her. What will be happen if one day, God had sent her four sisters and which also two pair of twins Sowon need some help and Yerin is there for helping. For being those sisters babysitter Will the sisters behave themselves after knowing that they're gonna live with a stranger after their real parents has died? Or they'll be a rebel kids and will giving both Sowon and Yerin a headache?