You were kidnapped by pirates, but you managed to run away. You stole their boat, but unfortunately you're not a navigator so you don't know which way to go, so you just wander around in the vast ocean, all alone, without food for a few days. You feel like you will dying soon, you're lying weak on the boat, but you see a glimmer of hope, a shirtless man with an orange hat comes to save you, that's Ace. Even though he's pirate too, he's nit bad, he's just a man who likes justice.