Yuri, a new Demon King in the alternate world, sets to search for Morgif, a legendary sword which only Demon King can touch.After Yuri and his search team arrive Van Da Via Island, they learn from the shop's proprietress about a strange incident that occurred at the mountain summit's spring some 15 to 16 years ago. Convinced that the incident was caused by the dmon sword, Morugif, they immediately proceed on to the summit's spring. A creepy-looking spring and a limestone cave. Could it be that the devil's sword, Morugif, is...