The Gate Keeper

The Crystal Basilisk, the formidable gatekeeper to the second layer of the celestial ruins, was a unique being crafted by the celestial themselves. It was an entity that existed nowhere else in the magus universe, and its power surpassed the ability of any scanners to analyze. Even the Nephilim, with all their knowledge, couldn't replicate its form for training purposes. The only resources available to them were the records and notes passed down by predecessors who had faced this guardian in previous expeditions.

As soon as they approached the creature; Emery and the group received a notification:

[You have joined the fight against the first-floor guardian].

Jinkan, aware of the impending challenge, issued a stern warning. "Be cautious. It took a thousand magus to battle this creature previously, and two hundred of them died"