Pokémon Mystery Dungeon: Crystal Chronicles!

"The crack of a Crystal is like cracking the world into pieces in udder and brutal destruction."

Yes, which a crack represents only the worst of destruction to loved things, a glistening shine to it purifies the most of things with only the smallest of holy magic, and that's where this story ties into.

After Mega evolution was first announced, the Pokémon of Aserian have been blessed with more abilities and special powers one could only dream of. Though...

...When a new species was born and got its hand onto a forbidden Mega evolution stone, cracks crumbled into the Crystal that kept the Queen and Kings castle together in order to let Aserian thrive with beauty and powers, but the more it crack the stronger that one pokemon became, let alone the Mega stone would make its Mega evolution stronger.

Though, one day after the events of this, after the school got in-training and higher levels of Pokémon that became quite attached and attended it, it seemed like even though they were no recent prophecies of new hero's for this generation, it still seemed though that whatever hero's were brave enough to cope and fight back at Marshadows darkness would be rewarded with great victory and power! And at the Pokémon school a Grookey is seen along with a few others that might just be the chosen ones of new bravery and strength,

But will the hero's actually turn out like all the rest and find out what Marshadow is truly planning?