Lu Yu watched Lin Qingqing go up to the third floor, then turned and entered his own room. He casually scanned the room to ensure there was no one else present. Lu Yu then sat cross-legged on the bed and began to upgrade his skills.
The skills he could currently enhance included Asura Slash, Great Annihilation Finger, and the Blood Burning Secret Technique... These three were the primary skills, with others being auxiliary skills.
As for the Asura Slash, as of now, its power had already reached the peak of seventh-grade martial arts. Further improvement would be difficult, requiring the consumption of a large number of similar martial arts to enhance its quality.
From a purely power-based perspective, the Asura Slash was already sufficient for Lu Yu's use.
Before breaking through to the Core Formation Realm, enhancing the Asura Slash had the lowest cost-effectiveness.
