Hidden Magic Circle

Within the forest, the silver-haired, violet-eyed girl, Viviana, veiled in white, was drenched in fresh blood. 

This blood was not her own, but that of the recently slain third-tier demonic creature, the "Two-Headed Stone Python."

After killing the Two-Headed Stone Python, Viviana was in decent condition when she discovered another one feasting nearby. Seizing the opportunity, she decided to strike while the iron was hot and slay another to hone her combat skills. 

However, as Viviana approached the second python, it astonishingly shed its skin and evolved into a "Three-Headed Steel Python" before her eyes!

Viviana was genuinely startled and hastily retreated to safety.

The difference between a fourth-tier and a third-tier demon was not to be underestimated. 

While Viviana could emerge unscathed from a battle with a third-tier creature, facing a fourth-tier one would mean a life-or-death struggle.