Kingdom Hearts

Ten years before Sora fought to save the worlds, three young Keyblade wielders named Terra, Aqua, and Ventus trained in the hopes of becoming Masters one day. But everything changed on the day of Terra and Aqua's Mark of Mastery exam, and the three each set off on their own journeys that would test their friendship-and alter the course of their destinies forever. (Source: Yen Press)

Sora, Donald, and Goofy have defeated Ansem and restored the world. But beyond the dark door—a door that had to be closed—Riku and King Mickey remain. And so the trio set off again on a new journey to find Riku and the king. As they progress through the Castle of Oblivion, encountering agents from the mysterious organization along the way, Sora and his friends begin to lose their memories. What does it mean to hold, something dear? And in the end, what path will Sora choose?! (Source: Yen Press)

Roxas is the protagonist of this story. Number XIII of the Organisation. He has no memories of the time before he became an Organisation member, and so as he performs missions every day, he has doubts and questions about everything around him. He is able to wield the keyblade.

Sora is a young energetic boy looking forward to exploring the world with his friends, Riku and Kairi. The threesome is working hard on completing a raft that will allow them to leave their island but one day a mysterious force causes Sora to gain a special weapon known as the Keyblade. He fights some weird monsters and gets transported to a strange town. Meanwhile, Donald and Goofy leave their castle to search for the king and the chosen one who holds the "key" to saving the world. Sora is attacked again by creatures known as Heartless but is helped out by an old man named Cid and a warrior named Leon. He eventually meets up with Donald and Goofy and they join forces to go search for his friends and the King. (Source: TOKYOPOP)