The dash didn't take more than a second, and yet it felt like a year to him. William could hear the cracking noises of the weapons on his side, as they got hit badly from the monster's spirit power. At the same time, he used his deadliest technique, and dashed forward towards one direction, the monster's belly point.
During all this time, he kept looking for the most suitable place for the core to be. He knew much information about the monster, but there was no lead about where its core was located, as no one killed it before.
So, he kept closely watching, looking for any sign for the place of this core. The core is the richest place with spirit power, the most place that'd attract more spirit power than other organs. At first it looked impossible to locate as the monster was entirely lit with spirit power.