Genshin Impact: My Eternal Library of Knowledge

When Su Jun awakens in Teyvat with an extraordinary library at his command, he discovers that true power lies not in physical strength, but in the immortality of ideas. While flesh decays and bones turn to rust, his thoughts, spirit, and soul remain untouched by time itself. Armed with infinite knowledge and an intellect that makes even demon gods seem insignificant, he walks a path where wisdom triumphs over brute force. In a world of elemental powers and ancient deities, one man's mind becomes the ultimate weapon.