After finally another long journey, beating the guards of the Obsidian kingdom, you manage to find the next boss... Etheral king...

nearby was Cruel King, who somehow survived, but the moment Cruel King noticed you, he alerted Ethereal King

Ethereal King spotted you and said

"So you are that player who defeated Cruel King, hm? Well now you're messing with the wrong person!"

he adjusted his crown and took out the venom shalk sword.