Our heroes were walking through a forest on their way to Mt. Tensei and thought they might stop by a Pokémon center, but none were near, so they kept walking until Serena noticed Misty was shivering.

"Huh, what happened Misty", Serena asks Misty. Misty who was still shivering looks to her sides towards the bushes and everywhere else.

"Bugs bug me!", she said terrified. Serena chuckled for a second and spread her hands.

"Here, we'll hold hands", Serena said with a smile. Misty accepted with a smile. Ash and Brock were now a bit far from the girls. Pikachu who was still on Ash's shoulders turned back, and the girls weren't there.

"Pi?", he questioned.

"What is it Pikachu?", Ash asked looking back, "The girls! They aren't here Brock!", Ash yells.

"What?", Brock turns back. But, until they could realize the two girls came running out of the forest. After they reached Ash, Misty made a fist and hit Ash on his head.

"It wasn't kind of you to leave us both like that!', she shouts at Ash and hits him on his head.

"Here we go, the usual Misty stuff, by the way, you were the one who stopped walking", Ash replies with a groan.

"Anyways, why did you have to stop?" Brock questions.

"Misty said she was scared of bugs, so I told her we could hold hands", Serena replied. Ash bursts into laughter.

"Typical Ash", Brock says, they continue to walk until they reach a Pokémon center. Once inside the Pokémon center, Ash makes Nurse Joy check his Pokémon, but not before the group has a small laugh at Brock proposing Nurse Joy. They then leave the Pokémon center and start walking again. After a few moments, Ash's shadow starts to act weirdly which only Pikachu observes.

"Pi?", it thinks to itself. And by the evening they reach Mount Tensei.

"We're here!", Ash says lifting his hand up in joy and enthusiasm, he then starts to run up the mountain.

"Wait for me, Ash!", Brock says running along, Serena follows running too. After a few minutes of running up the mountain, Ash and the team get exhausted.

"Wait up you three", Misty says panting. But for a fact, they were already upon the top of the mountain. Rotom was out of Ash's bag ready to click pictures. When our heroes were looking around, they saw an undiscovered Pokémon emerging from the shadows.

"What is it?", Brock says in amazement pointing towards the shadow Pokémon. Rotom Dex quickly looks at it.

"It's not a Kanto Pokémon for sure", Ash says, while Serena clutched onto Ash in fear. Then Pokémon starts to turn around.

"It's... It's... It's Marshadow", Rotom Dex yells in amazement, "The Pokémon I've been searching for, it's an Alolan Pokémon, a fighting and ghost type...", Rotom tells Ash about its myth. But the conversation was soon interrupted when Marshadow attacks the gang. It does a shadow ball on our heroes and they fall down.

"What was that for?", Misty shouts in anger, while getting up, and wiping off the dirt of her, she was about to reach for her Gyarados, when Ash interrupts her.

"Leave this to me", Ash says holding a Pokéball and turning his cap, "Greninja, I choose you!", Ash says throwing his Pokéball.

"Nin!", the Ninja Pokémon appeared in full style.

"Whoa! That's new!", Brock says looking at Ash's Greninja, it was considered his strongest Pokémon.

"Greninja, use cut!", Ash commands the Ninja Frog, as Marshadow starts to build up another shadow ball.

"NINJA!", it follows and cuts through the shadow ball.

"Now, Aerial Ace!"

"GREN...NINJA...!"

Marshadow kept attacking. It started to use its fighting moves.

"Use, Water Shuriken!"

"GREN!", it follows as Marshadow uses Spectral Thief and then Shadow Punch.

"USE, DOUBLE TEAM AND THEN USE AERIAL ACE!"

"NINJA!", it hits Marshadow for the first time, Marshadow uses Close Combat.

"NOW GRENINJA, LET'S GET STRONGER TOGETHER, STRONGER, STRONGER AND... STRONGER!", a body of water starts to surround Greninja, and its form starts to change.

"What is happening?", Misty asks with a confused face.

"Looks like Greninja is Mega Evol... wait, it doesn't have a Mega Form!", Brock tries to reply.

"They're doing it!", Serena, says with sparkles in her eyes, as the body of water forms a Big Water Shuriken on Greninja's back.

"What is that thing?", Misty says with amazement.

"We call it Ash-Greninja! And it's only possible because of the bond the two have grown between themselves", Serena replies.

"Greninja, use Aerial Ace, and then use cut!",

"NINJA!"

"Now, Water Shuriken!"

"NIN!"

"Now, time to end this!", Ash starts his Z-Move, Marshadow faints the whole team runs towards the fainted Marshadow. Brock starts to treat it.

Ho-Oh appears from the sky. Ash notices it and walks towards the legendary. The others try to follow but Brock stops them.

"It is his problem, we shouldn't involve", he says when Ash starts to float.

The time around Ash and Ho-Oh starts to freeze, no one is moving, except Ash and Ho-Oh. Then suddenly the surroundings change. Ash was now facing the earth, the visionary zooms onto a young Ash, who was searching for a Polywag. Before he could find it, it startled Serena, then, he saw Serena, crying alone in the forest. He helped her get out of the forest. Then time passed by, Ash sees a grown up himself, he was in a plane to Kalos. Quickly the image zoomed out. Ash was now looking at the Kalos map.

Time starts to go back, Kalos looked so much different in the past, Ash sees the beautiful forests of Kalos, but then suddenly the forests start to burn. In those burning woods at a distance Ash sees someone similar, someone, looking like him. Someone else is calling the Ash-looking man, "Satoshi". Ash then sees a much similar looking Pokémon, Ash-Greninja. Time jumped, the war was over, Satoshi starts sail to Kanto, while Greninja stays back in Kalos. Greninja then follows it's trainer and does only good in Kalos. Satoshi's Greninja was the same Greninja that saved the Ninja Village.

Time passed, many criminal organizations were formed, the earth lost all hopes in peace. Again, some time passed by, trainers started to emerge from different regions and places. In Kanto, Samuel Oak chose his starter from his father, Professor Oak, and started on his journey, he was a great trainer. Following his father, a new trainer emerged, Blue, who chose his Pokémon from his grandfather, since Samuel did not return from his journey. Along with Blue, two other trainers emerged Red and Leaf. Red, was the first Pokémon master, and an amazing battler. But the three trainers had a disastrous fate, after a glorious life. After finding of his son's death, Samuel Oak returned from his journeys and followed his family line and became a Pokémon Professor in Kanto.

Earth lost all hopes for peace, the Pokémon master died, Criminal masterminds were now ruling them. At this time, a new hope was born! His parents named him Ash Ketchum. On the same day, an egg from the lineage of Ash-Greninja was hatched in Kalos, an abandoned Pichu was left in Oak laboratory. And, on the same day, Serena's mom Grace became pregnant. Ash sees everything, from his childhood to now in a flash, how he grew, how Serena grew, how Froakie grew, how Pichu evolved into Pikachu. The whole vision just flashed in his eyes. Finally, a flash from the future, Ash facing off against Dragon Tao. The visionary now starts to fade away. Everything around him was bright white. He then hears a voice.

"Ash!", the voice starts to speak, as an image started to form around it, the image started to look like Ash.

"Who are you?", Ash questions the image.

"Ho-Oh", the image replies.

"Ho-Oh?", Ash says confused.

"Yes, Ash I've known the future, YOUR FUTURE", Ho-Oh stresses.

"Is that the reason, you let me see you so that I can be safe from threats?", Ash questions.

"Young man for the answer to your question, follow me", Ho-Oh says, signaling to an area, where land was being formed. Ash says nothing but follows the image. And when they were on land, Ash sees many familiar faces, his ancestor Satoshi and his Greninja, Red and all his Pokémon, Sir Aaron and his Lucario, Ash's father, and finally Arceus.

"Dad!", Ash runs towards his father.

"Ash!", Ash's father tells him giving him a hug, "How's Delia?", Ash's father asks him.

"She's great Dad", Ash tells his father.

"All these people here, we want to tell you something son, so, listen carefully", Ash's father tells pointing at all the other present.

"Ho-Oh, you have successfully completed your work", Arceus tells Ho-Oh, then turns towards Ash, "Ash Ketchum, the one chosen by many!", Arceus starts to speak, "Thanks for coming, you were supposed to come here on the day you started your journey, but it's not too late anyway".

"What?", Ash questioned with a confused expression on his face.

"You were born for a purpose, and that is to restore hope, you have already dealt with many threats to restore hope, without even knowing it was your purpose", Arceus continues, "Ash, criminal masterminds are all over the world, and it's your duty to save the innocent from them".

"Wait, what if I did not wish to become a trainer at all?", Ash questions.

"You were destined to become a hero, champ", Red answers, "It was your fate that you had to become a trainer".

"Yes, Ash, and remember, you wanted to be a Pokémon Master, the well-being of Pokémon was always your destiny, and you've got best friends in a world you must defend, the Pokémon World", Satoshi continues.

"Ash, you are the worthy one, you are the only Aura Guardian alive", Sir Aaron continues.

"Before you even joined the Ultra Guardians, you were always destined to be the one and only true Ultra Guardian", Ash's father continues.

"The true hero", Ho-Oh adds.

"Ash always remember, we'll be there by your side, you can always talk to us through your Aura", Aaron tells Ash.

"With that said, be careful son, take care of your mother", Ash's father adds.

"Ash, just one more thing, on your way back home, go to Cerulean Cave, and meet my old friend, tell him I sent you", Red tells Ash. And with that, they all depart Ho-Oh changed back into its normal form, and Ash was back to the place the vision started. Time starts to run once again, and everything goes back to normal. Ho-Oh then fly's away. Ash who was still levitating falls down, only to be caught mid-air by Greninja.

Greninja places him on the ground. Ash starts to look at his friends

"Serena, Pikachu, Greninja!", Ash says hugging the three, "I'm glad I met you guys".

"What happened Ash?", Serena questions confused. Ash now breaks the hug and looks into Serena's eyes, there was awkward silence for a few moments. Ash then hugs Serena, Serena was confused at first but then she returned the hug. Misty and Brock both chuckled.