Eternal Holy Radiance

When the Shura demonic power descends upon the Holy Radiance Continent, the ancient civilization is destroyed, and humanity retreats to seven great passes, holding a ten-thousand-year standoff against the Shura race. Lu Xingchui, a youth from Luofeng Town, joins the Holy Radiance Knight Hall selection to cure his mother of the Shura demonic poison. Despite being only a Tier 1, Level 3 cultivator, he defies the odds and wins the championship against higher-ranked opponents, becoming the disciple of the one-armed knight Xiao Muyun and stepping into the Holy Hall system. Blessed with innate full holy power and carrying the knight pendant left by his father, he enters the Holy Radiance Academy, forms the Dawn Squad with the Curse Shadow Holy Maiden Jiang Shuying and a group of companions, grows through bloody battles at the border, gradually unlocks the Holy Radiance Throne inheritance, uncovers the ultimate truth behind the ancient civilization's fall and the Shura Emperor, and with a knight's body, guards the vast land. — Description from novelcodex.org