章 936: 480 Breakthrough! Ultimate Fighter (4000)_2

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It felt as if he were soaking in hot spring water, with every inch of skin feeling comfortable.

Under the setting sun, threads of fragmented light shone upon him, appearing somewhat distorted from afar—a visual illusion like air flowing in ripples. This was because the immense and fiery body temperature was emanating from Casio, much like the heat radiation of a microwave, warming the air around him. The circle of green grass around him began to yellow slightly from the heat.

"Thump thump thump... thump thump thump..."

His heart, the driving force of his strength, began to beat faster, a heavy resonance emanating from his chest like the vibration of bowstrings.

In just a moment, Casio's heart rate had more than tripled and was still climbing towards five times, ten times the original rate.