Pikachu exited the guild on a cool, clear evening, setting off towards the beach. As he did, he passed Bidoof, who was traveling opposite him, towards the entrance of the guild.
"Huh?" He heard Bidoof say. "Howdy Pikachu, going out?" He asked politely. Pikachu smiled back at him. "Yep. I'm going out for a walk."
"Sounds nice, yup yup! It'll be dinnertime soon though, you don't want to be late for that!" Bidoof said. "Yeah, I hear you. I'll be back." Pikachu replied. He walked leisurely down toward to the beach, where, much to his pleasure he saw the beautiful setting sun, accompanied by a group of krabby blowing their bubbles across the beach.
"I haven't seen this in a long time." He thought aloud to himself. "It's as beautiful as I remember. I've just been too busy to come by and see it. But I've missed this….fantastic sight. I wonder when it was when I last saw this….The last time was…" He paused, wracking his brain in an attempt to remember the last time he's been able to watch.
Then he suddenly remembered. "Oh…The last time I saw this…It was when…when I met Lydia…" Pikachu though back to that day, the day when he first saw the young eevee lying there in the sand. "The view was like this at that time too." He recalled, walking over to where he had first spied her on the beach.
"The krabby blowing all those bubbles along the beach…I noticed someone…right here…Lydia was…unconscious…That was when…Lydia and I…That was when our adventure began." He said wistfully.
Pikachu remembered all the adventures that he had had with her very clearly, as if they had all just happened. When he had first asked her to form an exploration team, the time they had saved Azurill, when he had put his all his trust in her while exploring waterfall cave, confiding in her about his precious relic fragment and his dream to discover it's meaning, gathering the courage to fight Groudon because of her, the beautiful sight of fogbound lake, their time in the future, and so many others memories, all so clear to him. They had all happened in such a short amount of time, yet it felt like so much more to him.
"I remember it all so fondly." He said, his voice turning to show the emotions that were triggered by the memories. "All those memories of my time with Lydia…Memories…of Lydia…But now….she's gone." He spoke as tears began to form in his eyes. "And Lydia…isn't here anymore…" The sadness overwhelmed him and he collapsed in the sand, crying uncontrollably, mourning her, the pain suddenly still as harsh as the day she'd vanished from the world.
Just as he collapsed in the sand, Bidoof walked down onto the beach. As soon as he saw Pikachu collapsed there in the sand, he ran to him worriedly. "You've been gone so long, I took to worrying about you…Wh-what's the matter?" He asked, the sadness and concern clear in his voice.
"B-Bidoof! Bidoof! Waaah!" Pikachu cried, turning to his friend, unable to contain his grief. He collapsed again, this time against the unsuspecting Bidoof. "Wa-wah? What all is the matter?" Bidoof asked, panicked and confused as Pikachu continued to cry all the pent up tears from so many moths of loneliness.
Meanwhile, Dialga, at the distant Temporal tower, had felt, from so far away, Pikachu's sorrow in losing his beloved friend, just as intense as the moment she'd gone. "PIKACHU, WHEN YOU LEFT HERE…WHEN YOU BID FAREWELL TO THIS PLACE ON THE RAINBOW STONESHIP, YOUR SORROW…I FELT ITS INTENSITY EVEN HERE. AND IF THAT IS HOW YOU FEEL EVEN NOW…IF Lydia WERE TO SHARE THOSE FEELINGS…I WILL GRANT YOUR WISH. THE WORLD NEEDS YOU BOTH."
Yes, Dialga decided, this was what he wanted to do. They had given up so much for a better future, and all that seemed to be in his was pain and loneliness. The two might not seem like much to most, even together, but then, things are not always as they appear. Yes, he would leave the future to them. "THAT IS WHY I TRUST YOU WITH A GIFT. I LEAVE TO YOU…THE FUTURE! THIS IS MY THANKS! PLEASE ACCEPT IT!" And Dialga let out his powerful cry, and it seemed to echo as it fulfilled its purpose, bringing back someone who should no longer exist.
On beach, a glowing orb of light formed in the very spot where Pikachu had first found Lydia lying unconscious. Suddenly, from that bright light, in the same way her body had disappeared as they left Temporal tower, the light faded, and she stood there, looking quite surprised. "Pikachu look!" Bidoof cried excitedly in disbelief. Pikachu picked himself up and turned around, only to see last thing he ever expected to see again.
He stared at her for a moment, shocked and unsure if it was really his best friend and partner was that standing before him. But when she smiled a bright, joyful smile at him, her soft brown eyes lighting up at the sight of him, he had no doubts. They ran towards each other, slamming into each other. He hugged her as tight as he possible could, as if he were afraid she might disappear again if he let go. The tears had only stopped briefly, but as he began to cry again, they were not tears of sadness, but tears of joy. She nuzzled his cheek with her own and laughed softly. "Don't cry, it's alright. I'm here now. I'm here for good this time, I promise."