Hydra Dantian Cultivation HDC

Octavius was kidnapped and taken in by an evil cultivation sect. The Inverted Zodiac Sect has begun to thrive and seeks to expand its control. The sect master had a wonderful plan to do so. Taking in a large number of new recruits and disciples to test new techniques and combinations. Those who fail can be turned into zombies, ghosts, pills, walking cauldrons, demon food, or whatever else true sect members might need.
Octavius didn't necessarily want to be a cultivator. If he were going to be a cultivator though, he would not have picked an evil sect to join. He was raised to be a kind and caring young man who could look after others. Now he has to survive a literal hell. How can he be evil? More importantly... how can he survive?
In response, Octavius begins to explore the young dao of hydra dantian cultivation, based on the monstrous techniques of hydras and other monsters and demons that have developed dantians distinct from the norm... some are even unique. Dragon's throat dantian... Frog's stomach dantian... Ghost's shadow dantian... Lamb's wool dantian?
In the end Octavius will have to put one question to the test, is he evil?