Blood Rain Demon Monarch's words extinguished the glimmer of hope that had just risen in Thousand-edge Demon Monarch's heart.
Indeed, just from the relaxed look of Blood Sword Master, it was clear that he had nothing to fear. He even hoped that Blood Rain Demon Monarch would invite experts from other places and let Blood Rain Demon Monarch continue to maintain this array formation, Blood Sword Master could continue to use the array to improve his swordsmanship.
In the previous 600 years, Blood Sword Master's swordsmanship had improved tremendously. If he was given another 600 years or more, who knew what level his swordsmanship would reach?