My Sister Can't Be the Master of Shangyin

The story takes place 50 years after the Secret Seal Restoration War. After the "Celestial Change", the magic power of the Secret Seal tribe declined, making it increasingly difficult for ordinary tribesmen to practice magic. But Ayali's sister Ayana has mastered the ability to match the Chinese and Indian mage at a young age. Ayana is still working hard to achieve the capabilities of Master Shangyin. Although Ayali is not good at magic, he has been silently helping Ayana. In the end, will Ayana become the Master of Shangyin as he wishes? What other major events will they encounter?