Monkey D Mikasa

Monkey D Mikasa is the older sister of Monkey D Luffy. She is helping her brother to achieve his dream (to become the king of the Pirates), to find a crew and so on. On their journey, they find new crew members, new friends, new adventure but also new enemies. But what is Mikasa's dream? What's her role in this story? And will she be able to make her nightmares stop? RobinxFemOC