"Why don't they come when there's no eruption?" Saru asked.
"From what I can tell, those empty tunnels only appear during an eruption. It's ironically both the safest and most dangerous time. During non-eruption periods, the lava is more evenly spread instead of some veins being under high pressure and others being at low. So, if one wanted to enter during them, you'd have to directly enter the lava itself."
"But what if we don't get lucky this time, then?"
Dyon grinned. "Luck? I don't need it. They don't dare enter the lava because they have no idea how hot it can get and how long they'll have to stay in it before they have to take another break. But… I don't have that problem."
Dyon's body flashed with a surge of energy. Without him even properly circulating the technique, [Titan Diamond Body] activated. If Dyon so chose, he could completely rename the technique because it was entirely his own now.