...... Ok here goes:
His name, well he doesn't really have a name. He does have a designation though: Four, so technically that's his name. One of the seven (I think.) Guardians of Light, they have their own armor, keyblade and Gummy Ship, as well as a special charm that allows them to instantly teleport to the princess's side should they be in imminent danger. Their main purpose is to protect their assigned Princess of Light. Four was assigned to Kairi by the King at the young age of 14 after completing the Mark of Mastery exam as well as specific Guardian techniques (specifically, should a princess ever get into trouble and one Guardian isn't enough, they have the capabilities to turn their keyblade on themselves to ultimately create three Guardians: The Nobody (think Xaldin but with keyblades, doesn't look like him though), the Reactioner (heartless but with the instinct to protect, not take hearts), and the Lingering Will (whatever's left ). The only difference however is that their heart splits with and resides in all three of them, so he still has control of all of them. They are also expert gummy jockys and unusually great chefs ) Since he is a Nocturnal Guardian, he defends the princess at night, usually while she is sleeping. While Sora and the crew does their activities during the day and evening, Four is responsible for nothing bad happening to her and anything in her vincinity when she sleeps at night. He was 15 during the events of KH1, silently watching over her as she hung out with Sora and Riku.
All was well until the heartless decided to attack Destiny Island by force that faithful night. He fought valiantly but one heartless (a shadow, go figure...) got by and harmed Kairi, (she picked it up and exclaimed of how cute it was, and before he could scream to drop it, the shadow scratched her) releasing her heart. He captured her heart and redirected it to Sora, who he figured would be a suitable carrier until things became safer.
When he realized that Destiny Islands would be destroyed, he grabbed Kairi's empty body and evacuated on his own Gummy Ship (see aircraft below ). He landed in Traverse Town since that was the contingency plan should it ever get THAT bad and a princess was lost. He tried to get her body into safe hands with Leon and the crew, but was ambushed by a CRAP load of heartless. 45 minutes later, he was exhausted but was happy with the fact that Kairi wasn't hurt, making darn sure not to fail AGAIN after what happened. Just as he was about to pass out from exhaustion, Riku popped up and said that he'll take care of her from here on out. Since he knew Riku, he figured that she would be in safe hands (He didn't know about Riku with Maleficent).
During the events of Chain of Memories, he went back to what he was assigned to do, but worried about her since she was always at the beach waiting for something or someone. He didn't know what her problem was, and she looked REALLY sad. Breaking the "Stay hidden so the prince can steal all the credit" ultimatum, he made small talk with her in efforts to turn the frown upside-down and (unsurprisingly) became friends. He did make her promise not to acknowledge his existence though, so that's why there was no mentioning of him during KH2.
In KH2, remember that all of the events surrounding Kairi occured during the day-time, when he's asleep. He didn't appear when she was in the dungeon of The Castle That Never Was because she wasn't in any real trouble, merely a pawn used in the Organization's plan to capture Sora. Since Sora proceeded to whoop everyone's a$$ who was involved, four knew he could rest easy.
He has a feeling that he may be involved in teaching Kairi the ways of using a Keyblade sometime in the future, since it looks like something big is approaching fast...
He also hopes to see his other Guardian friends, and hope that they all have fun nicknames given by the princesses since the ultimatum is pretty much broken (He knows for a fact that Three is now affectionately called 'Eddie', who was assigned to Aurora)
(Will edit as needed to fit storyline better Sorry if it sounds stupid. Let me know if I screwed up somewhere. I may turn this into a full fan-fiction if I'm feeling lucky.)
(He haz theme song! Merlon: Ace Combat Zero. No link because I don't wanna annoy)
Edited by javelin434, 01 March 2013 - 11:11 PM.