As the needle of Mana Meridian Injection was pushed into his body, Zhang Yu immediately felt the mana within him, which already operated tirelessly day and night, becoming increasingly fierce.
Under the fierce collection of the Great Sun Qi Sea, the surrounding spiritual mechanism surged like rivers flowing into the sea, continuously rushing in, ultimately transforming into strands of mana within Zhang Yu's dantian.
"What a pity, it's a shame I don't have a Spirit Root. If I had a Spirit Root and were in a Spirit Vein environment... could I push my mana to the absolute limit of 100 units of Qi Refinement today?"
At the same time, Zhang Yu felt a slight twitch in his meridians, his heart started to accelerate, and his breathing became rapid.
"Is this the side effect of the Mana Meridian Injection? It's somewhat different from the Simulated Phoenix Functional Element, looks like it places a larger burden on the respiratory system and blood circulation."
