The Kingdom Hearts 358/2 Days manga is based on the spin-off video game, Kingdom Hearts 358/2 Days.
Soon after his birth as a Nobody, Roxas joins the mysterious Organization XIII, knowing nothing of his identity. With the help of Axel, another member of the Organization, and the mysterious No. 14, who is also missing her memories, Roxas slowly begins to learn what it takes to be a part of Organization XIII...and what it means to have a heart.
- Chapter 1: The Ice Cream That Started It All
- Chapter 2: Friends
- Chapter 3: Xion
- Chapter 4: I Do Have a Problem
- Chapter 5: A Sea of Memories
- Chapter 6: Morning Elixir
- Chapter 7: Key Bearer Blues
When Xion loses her Keyblade, it's Roxas's job to make sure no one finds out. As long as the two can go on missions together, no one will know that it's Roxas collecting all the hearts. But will Demyx blow their little secret?!
- Chapter 8: Best Friends...?
- Chapter 9: The Clueless One Brings Trouble
- Chapter 10: The Xion Supremacy
- Chapter 11: Sweet Heart
- Chapter 12: Imposter on the Loose
- Chapter 13: Watchdog
- Chapter 14: Summer Vacation
- Chapter 15: A Matter of Memory
- Chapter 16: Frustration
- Chapter 17: The Wrong Buttons
Xion, having failed her last mission, is left unconscious and out of commission. Unfortunately, Roxas doesn't have time to worry about his friend because he's been ordered to go to Wonderland with Organization XIII's No. 10-the Gambler of Fate, Luxord. Can Roxas keep up with the old man's games?!
- Chapter 18: Broken
- Chapter 19: Wonderland Gambler I
- Chapter 20: Wonderland Gambler II
- Chapter 21: Wonderland Gambler III
- Chapter 22: The Truth About Xion
- Chapter 23: Distortion
- Chapter 24: Never Land Boogie
Left alone to ponder the purpose of her existence and desperate for answers, Xion journeys alone to find out who--or what--she really is. But little do she, Roxas, and Axel know that her quest will lead to the close of one tale and the continuation of another...
- Chapter 25: Never Land Boogie 2
- Chapter 26: The Beginning of the End
- Chapter 27: The Longest Day
- Chapter 28: Searching for You
- Chapter 29: Fracture
With Xion back in the Organization, she and Roxas can finally work together again. But strangely, Roxas is getting weaker and weaker, while Xion is getting inexplicably stronger. Meanwhile, the leaders of Organization XIII decide that they only need one Keyblade wielder. What fate lies in store for Roxas, Xion, and Axel?!
- Chapter 30: Waning Power
- Chapter 31: The Last Sunset
- Chapter 32: Unsaid, Unheard
- Chapter 33: Day 358
- Chapter 34: Her Path
- Chapter 35: The Dream of a Nobody