This is a world where heroes are created by people's trust, and the hero who has received the most trust is known as - X. In this world, people's trust can be calculated by data, and these values will be reflected on everyone's wrist. As long as enough trust points are obtained, ordinary people can also have superpowers and become superheroes that save the world. However, the ever-changing trust value makes the hero's path full of unknowns...

The world is on the brink of destruction after a devastating ten-year war in the "shadow labyrinth." Desir Arman is one of the last skilled magicians left standing, but even he is no match for the formidable foe threatening humanity's very existence. Just when he's certain the end has come, he is sent back in time to his early days of studying magic at the prestigious Hebrion Academy! With this rare second chance, Desir is determined to save not only himself but also the friends and comrades he once lost. Armed with the knowledge of what their future holds, can his efforts make a difference, or are they all doomed to relive the same terrible destiny?

For over one hundred years, a special quest has been waiting for a wizard skilled enough to complete it. On the northern continent of Guiltina, there are five immensely powerful Dragon Gods who possess great destructive force that can only be quelled by sealing them away. Natsu Dragneel and his friends from the Fairy Tail guild—Lucy Heartfilia, Gray Fullbuster, Erza Scarlet, Wendy Marvell, and the exceeds Happy and Charlés—consider this the perfect challenge to take on. The Fairy Tail mages are not the only ones searching for the Dragon Gods. Diabolos, a guild exclusive for "Dragon Eaters," seeks to enhance their Dragon Slayer magic by devouring the dragons. Meanwhile, Fairy Tail's newest addition, Touka, appears to be hiding something sinister from her new companions—and her secrets may bring disaster to the guild while its strongest wizards are away.

40 years ago, a Celebi was being attacked by a Pokemon Hunter. Luckily, a young boy named Sammy saved Celebi. Using its Time Traveling power, Celebi transported himself and Sammy 40 years into the future. There, Ash, Misty, and Brock assist Sammy to the healing lake in the forest so they can heal the wounded Celebi. Unfortunately an evil Team Rocket member, Viscious a.k.a. "The Iron Masked Marauder", tries to capture Celebi using his technology. As Ash and Co. try to get away from Viscious, they also run into Jessie, James, and Meowth, who also want to capture Celebi. Soon it becomes a race against time to get Celebi and Sammy back to the forest before Celebi is caught and is used to destroy the forest and themselves. 

(Source: ANN)