I notice you're referencing what appears to be a specific web novel or light novel title: "He Who Vowed to Create a Demon Harem v112 a updated" — but I don’t have any verified or mainstream record of that exact title in my training data. It may be:
Preliminary reactions from forums (Reddit’s r/LightNovels, Discord groups, and NovelUpdates) include: he who vowed to create a demon harem v112 a updated
Subscribe for updates on v113 and more deep dives into demon harem lit. I notice you're referencing what appears to be
New Character Interactions: Enhanced dialogue and event scenes with the main demon sisters, featuring deeper relationship progression. Expanded cast dynamics: Several side characters get sharper
A single paragraph in v112a introduces a new demon subspecies: Echoes—shadows of slain greater demons that retain personality fragments. The MC immediately notes their potential for infiltration (and, yes, collecting). No names yet, but the fandom is already speculating.
The Protagonist: You play as Theo, a "hero" soldier tasked with reclaiming the city of Manc from the Halfas family, a powerful demon clan.
He Who Vowed to Create a Demon Harem is an adult RPG/visual novel developed by Avantgarde and translated by Game Overview Set in the year 1887, the story follows a hero named in a world under siege by demonic invaders . Theo’s primary objective is to reclaim the city of Halfas family , a demonic clan that currently controls it