Circle Warriors Rise
"The warriors who used seals to grow stronger were called magic warriors," Julius said as he approached the table where Cassian was sitting. He continued, "Now, what's the difference between mages and magic warriors, considering both store mana inside their bodies—mages with their mana hearts, and magic warriors with seals?"
Julius paused, scanning the room, but no one seemed to know the answer. He went on, "The difference is that mages store mana in their mana hearts, while warriors store it directly within their bodies. For warriors, this means mana constantly flows throughout their body, with no way to escape. As this mana remains sealed inside, it starts to bind with the body, gradually making it stronger."