/The letter lays open, unsigned and hastily written. Its writer was in a great rush – and must've known the recipient could tell who it's from.\
It finally worked!
Every day since the contest ended, we've been trying to form a bridge between our two worlds. All of us missed you so much, and we know you felt the same. But feelings alone weren't bringing us any closer.
Except… they were, and we just didn't see it. Over time, we realized the bonds between mamodo and human were too strong to keep us apart. From time to time, when one half of a pair was in distress, the other would temporarily manifest in the other's world to aid them. We've received numerous reports of demons falling into trenches, being attacked by wildlife, or just simply being under a lot of stress. As if by magic, those demons would find a familiar face materializing to give them a lift, scare off beasts, or simply to lend a comforting embrace. It wasn't one-sided… demons also recalled appearing in your world to help out one way or another as well.
We didn't know what to make of this at first, but soon, we realized it was the key. If we could harness this energy, the force that could briefly let us hop between worlds, maybe we could find a way to do it at will? For as long as either party would like? It was all a matter of taming this energy.
When we asked for volunteers, ones who'd experienced this transfer, nobody refused. We would try and induce the process, usually by having the demon remember good times together with their partner and wish desperately to be by their side. It didn't always work, but when it did, the mamodo would briefly vanish, only to pop back into existence a moment later. In fact, I recall I managed to visit you a couple times, didn't I? …And once landed on top of your picnic lunch? …Sorry.
Anyway, through trial and error, we tried a ton of tricks to let us come and go at will. Nothing really worked, except one thing. When multiple mamodos tried at once, they'd all stay longer. We put more and more demons together until, eventually, they could remain for an hour or more. We were on the right track.
We just finished our final test. We called every mamodo who'd been in the battle, and asked them to gather around the spot where we first entered your world. Not all came along… some didn't have a good relationship with their partner, and vice versa. But we gathered enough. Together, locked hand in hand, we all bowed our hands and prayed to be allowed to see you guys again.
At first, nothing happened. But then, the portal flickered. Hummed. Reopened.
No one believed it at first, but when a few demons hopped through and came back a moment later, we knew we'd succeeded. The bridge between worlds is open, and we can't wait any longer! I'm writing this quick just to let you know I'll be there soon. And so will everyone else!
We're on our way, Kiyo!
Kiyomaro read through the letter. Then read it once more. Were his eyes deceiving him?
They weren't.
His mouth quirked upwards into the widest grin he could remember. The mamodo had figured it out, and could be arriving to see each of their partners at any moment. He had to tell the others.
Tossing the letter aside, he pushed himself away from his desk and jumped to his feet. He jogged past his window and across his room, already running phone numbers through his mind. And then he stopped.
He backed up, glancing out the window again. He could've swore he'd seen… yes, there was a strange shadow flying closer on the horizon. As it drew near, his smile returned. Out in the distance, a familiar face waved to him, looking slightly older than he remembered and now tall enough to require two eagles to lift him.
"Zatch!" he shouted, returning the wave. And then froze. If this was anything like the first time, he needed to duck. Now.
Kiyo hit the deck, just before his window exploded above him. "Kiyo!" A familiar voice called.
"ZAAAAAAAAAATCH!" Kiyo roared.
"I missed you, too!"
"WHERE DO YOU KEEP GETTING THESE EAGLES FROM?!"
A/N: There you have it - the true final letter in our little collection. Surprised? I felt like giving everyone a little hope that one day the duos will all be reunited... and some room to make a story out of this scenario, possibly.
I hope you all liked my little fic! Thanks to everyone who's read this far, and for all the reviews I got along the way. I'm glad you've all enjoyed my takes on characterization and how they've developed post-defeat.
I did say I'd make a few more bonus letters for unaccounted for mamodos, though I've been a bit busy so it might be a bit. If anyone else has mamodos they want to see, by all means, let me know. As for now, though, this story is complete for all intents and purposes. Thanks again for staying tuned!