Sign-In Cultivation: I Inherited the Azure Emperor's Legacy

College student Jiang Linyuan's mundane life shatters when a mysterious sign-in system awakens on campus—revealing that his university is actually a secret cultivation training ground. Each daily check-in at hidden locations grants him spirit stones, ancient techniques, and the legendary Azure Emperor's inheritance. While his classmates cram for exams, he's cultivating a spiritual garden and building his own cave dwelling. But when students begin vanishing and sign-in points align with the Ten Ancient Grotto-Heavens, darker truths emerge: hidden sects, government cultivation bureaus, and rogue…