Eternal Magic

The origins of Gray and Lyon are finally revealed. Ten years ago... It was Ul and Lyon that rescued Gray after his parents were killed and he was injured by Deliora. Taken in as her pupil along with Lyon, they train day and night in Creation Magic. But then Gray hears the location of Deliora, and recklessly challenges Deliora in battle. The tragedy that unfolds because of it is... Gray, burdened by his past sins, and Lyon who's lost his dream... The time has come for the two of them to settle things!!Source: crunchyroll