Effigy Of Madness

Alioth Is your average F ranked adventurer. He comes from a family of D ranking adventurers who mainly survive by being luggage carriers for the rich and powerful. Luckily for him He was able to snag a deal with a SSS+ ranking adventuring party due to a chance deal ,he made with the leaders of a S rank party To take 1% of all the loot gathered. Upon enter The SSS tier dungeon He is brought into a perilous situation only to be saved by one of the party members a strange but quirky arachnid girl .When the dungeon is completed  he is deceived and instead of 1% he really is only allowed to choose 1 item. Thinking its better not to be associated with these types of people and wanting to make his leave he choose something deemed useless by the party to avoid being hunted down later. This was a some sort of statue that displayed a women being killed by her own tentacles . After choosing the worthless reminder of his deceit not only did the Dungeon lord awake from his slumber but he trapped the party in the dungeon to toy with them for his entertainment .Forcing them to fight through 9999 levels!