After Casares seized the Burial Ground Key, he didn't make things difficult for others and quickly left.
The other forces spectating around also chose to retreat, refraining from coveting the Burial Ground Key in Casares' hand anymore.
After all, Casares' combat power had reached the Tenth Tier, and with an inferior main artifact in hand, his strength was infinitely close to the level of a Burial Ground Guardian. To snatch the key from him would be as challenging as defeating a Burial Ground Guardian.
Furthermore, the most crucial point is that Casares has the support of the Abyss Demon Clan. Not only is the Abyss Demon Clan one of the Three Peak Clans, but it's also currently the most populous force remaining in the ruins. Casares is the leader of the Abyss Demon Clan's trip to the Burial Ground; offending him is equivalent to offending the Abyss Demon Clan, and it's not wise to provoke them.
Guding and his group also chose to retreat.
