If you want the classic Japanese reverse-harem setup officially in English, start with Collar x Malice and work down this list. Reverse harem means one heroine surrounded by a full ensemble of love interests, each with his own route, and Japanese otome is where that structure was polished into an art form. Every pick here is a licensed English release, and each earns its spot on ensemble strength: casts that feel like a group worth meeting, not five strangers sharing a title screen.