I understand you're looking for a long article based on the keyword "he who vowed to create a demon harem v112 a". This appears to reference a specific chapter (volume 112, section “a”) of a web novel or light novel series titled He Who Vowed to Create a Demon Harem — likely a popular genre piece in the isekai or dark fantasy harem niche.
The Power Dynamics: V112 a explores how the protagonist balances the volatile egos of high-ranking demonesses who, in any other story, would be the primary antagonists. he who vowed to create a demon harem v112 a
"He Who Vowed to Create a Demon Harem" likely follows the journey of a protagonist who makes a vow or enters into a contract with supernatural or magical forces to create or gather a harem of demon companions. The story probably blends elements of fantasy, adventure, and possibly romance, set in a world where demons, supernatural creatures, and humans coexist, sometimes in conflict, sometimes in harmony. I understand you're looking for a long article
Availability: Versions of this game are commonly found on platforms like DLsite or Steam. Overview "He Who Vowed to Create a Demon
The High Council Conflict: V112 A introduces the "A" branch of the story, focusing on the diplomatic fallout with the Demon High Council.