He was still expressionless, he continued to move forward relentlessly.

I had once screamed, gradually, I lost my voice.

I had once cried, gradually, I lost my tears.

I had once grieved, gradually, I became able to withstand everything.

I had once rejoiced, gradually, I became unmoved by the world.

And now!

All I have left is an expressionless face, my gaze is as tough as a monolith, only perseverance remains in my heart.

This is my own, an insignificant character's — Perseverance!

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An Otherworldly Demon (who is actually a demon) enters the Gu world.

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-FTM volume X-