Bone King : Downfall of the King

For Hades, when 1,500 people attacked the Great Underground Tomb of Nazarick, he participated in it out of the desire to see the ninth-ranked guild. But when the undead skeleton player named "Flying Squirrel" used his absolute strength to force him into a corner, took his life, and said to him in a condescending tone, "Do you want to dance too?" Hades realized that he only had one goal left in YGGDRASIL, which was to overthrow the alien guild "Ainz Ooal Gown" located in the Great Underground Tomb of Nazarick, and then stepped hard on "Flying Squirrel" and spat at him. But as he grew older, the past grudges had long since vanished. When the game was closed, he came to Nazarick with the purpose of commemorating his youth... ...