How?
Ryu's gaze sharpened, his senses reaching the most heightened sense they could. Whenever he risked his life like this, he didn't do so recklessly. Although there was an inherent risk involved, he always felt that he had adequate reasons to do so.
When he came to this world, he knew there was something dangerous on the other side. However, he had believed that what benefits he could gain were beyond what detriment there was, and in the end, he had been correct.
This time, he was facing off against his own limits, bringing into his body a substance that even Dao Gods feared in high enough quantities. He was nothing short of a madman, but he had a certain belief in his Spiritual Foundation as well.