Killing [Gods] With My Sister

After suffering a terrible destiny to satisfy the [Gods], a pair of siblings swear revenge against the deities. Easier said than done. The siblings will have to level up, collect titles, and find better and better equipment first if they want to withstand any chance at all against beings tens of thousands of times stronger than themselves. WARNING: This story contains incest. Smut only from Chapter: 31 onwards. -- I'm also uploading on Royal Road.