A Battle of Wills: Rubber Vs String

Donquixote Doflamingo is not a man used to things not going his way. When the Marine Hero Garp starts poking his nose into the Ex Celestial's business, he decides to put him in his place. The best way to do that? Kidnap his grandson, and utilize him as a bargaining chip. This seems like an easy solution. That is until he meets Luffy. Maybe he should have just poisoned the old man.