Probably a seinen.iirc in a chapter, 2 monster waifus are fighting for the MC in a dark place which looks like a sewer or something. One is a fox demon or alike.They can transform. They can change from normal human appearance to monstrous giant form. I think the fox waifu holds the main waifu in her hands, ready to devore her, the scenes cuts and the faggot MC faints, wakes up, only to find the main waifu alone. We understand that she finally won despite the appearances.The drawing was sketchy in my memories.
