Overview:
Lumaria is an RPG for adults with classic MMO systems such as enchanting, crafting, resource mining, and mob farming. It also includes mechanics for gifting and having relationships with girls, a day and night system that affects NPC behavior, a bestiary, and many other smaller systems.
All monsters of this world are controlled by monster girls, after fighting with them you have a chance to get their summoning stone and sign a contract with them, after which you can take her to the group, send her on a hunt, increase her favor to open new sex scenes.