A Butthurt Survival (18+)

Maddison, even with all his knowledge about Transmigration and Isekai, had but one second before realizing what was about to happen. He could only mutter, 'Oh', before being sent through a peephole in the dimensional fabric. And if luck didn't already stomp on his face, then through a complex line of events and absurd coincidences, he is left with a broken sexual system. Now subject to the whim of his captors in a hollow Crypt and underground hierarchical society, how will he survive against the seemly impossible odds? -- Author Notes -- - The cover isn't mine (artist Bluefield), and if requested, I will take it down immediately. - Also, please do take a hint from the tags before proceeding. Plus, I couldn't even put all the tags I wanted, so be prepared for a very devious story.