Protagonist Magical Marriage Lunatics!! the unremarkable guy Yuta Ushio performs. He studies, tries not to stand out from the crowd, and spends time with his only girlfriend named Yuna Shirahase. But one day the hero’s life took on completely different colors. A house magically appeared on his backyard lawn and a beautiful lady emerged. As it turned out, her name was Lucy. A charming stranger introduced herself as a vampire girl and stated that she had once entered into a love agreement with a guy. And now the very day has come when you need to fulfill what you promised to your otherworldly wife, even if you don’t remember anything about it.

But with these words of madness, Magical Marriage Lunatics!! were just beginning. Over the course of several days, other young ladies came to the young man with similar stories: the succubus Julia, the fluffy fox girl Karin, the goddess Yorihime and the witch Luluna. Throughout this narrative arc, the player will choose which of the girls he wants to give preference to. Gradually getting closer to them, you will be able to get to know each person better, and at the same time understand more about Yuta himself. But it is worth considering that girls will desperately fight for the attention of their lover, so each of them can be either conquered by their actions or wounded.