Underworld

"Kersurf" continent show up when center of 'Hekalotia' and 'Akeronia' two kingdoms ,there are lot of cultivation activity, as diggin a 'God's blessing Ore', 'Teamoo' in " Nikire range's one Dungeon and under world become known. "Teamoo' is created by acient upper human and discoverd proccess make a tribe and he used it to make a rapid culture. Because of complication of idelolgy, 'Hekalotia' and 'Akeronia' that are have their power have to have lots of battle to have this 'Ore" and there are still remains around "Nikire range". In these intense battles, this range becomes known step by step and finally a tunnel to "under world" is made. There are fallen angels live in and they step on entrance of world that have their blessed humen and full of hatred for God.  When you first arrive in this underworld entrance, very unique monsters show up, event the kingdoms' power can't control them.  In this underworld, the basement one is often called "Nikirie Dungeon", basement two as "underoworld". In order to reach the underworld, you need to pass thru the "river of death" at the basement one. Around basement one's entrance, there are easy monsters but as you go deeper, you will encounter more powerful monsters like in other fields, and when you reach basement two, super powerful monsters show up.