The Goddess Who Will Be Devoured by the Protagonist

'''I became a 'God' in a bleak fantasy novel. This novel was a story about the protagonist falling into darkness, becoming an evil god, devouring the goddess, and taking his revenge. The reason the protagonist turned dark was that the goddess had relentlessly worked him to the bone under the guise of saving the world. I'll be nice to him! Let's stay off the path of darkness! [Streamer 'Sirius' has accepted the contract.] [Congratulations! You have successfully signed the contract!] I signed a sponsorship contract first to ensure things went smoothly, but... *Purchase items for sponsorship* [Worn Helmet] [Worn Breastplate] [Worn Greaves] [Worn Cloak] [Worn Sword] [Worn Shield] [...