Title: Bride of Elysion
Ina Yoo is just going about her day on Earth when she faints and wakes up to find herself in a cage with other women, who all seem to be from different places. None of them seem to know what's happening or where they are. They are carted off to a stage where many masked men overlook them. Ina Yoon is terrified, as expected. While standing in the middle of the stage, she catches the eye of a gentleman in a cat mask. Before she can ascertain his identity, she is chosen and suddenly flies up to a higher balcony. Once there, she is introduced to a gentleman named Aivan. He has decided to be her supporter.
However, the gentleman in the cat mask, Asbell, comes to take her for himself. The two men get into an argument; all the while, Ina is stuck in the middle, only growing more lost and confused by the second. Finally, the two men ask her to choose between them. When pressed, Ina selects Aivan. Aivan then takes her back to his mansion, where he explains that she has been summoned to the world of Elysion, a world where only men are born. As a result, they have to summon women from other worlds. Once the women make it over, they are praised and worshipped by the men, taught how to live in Elysion, and allowed to marry and take on as many men as they see fit.
In exchange, the women help produce mana, magical energy, which can only be done through a “mana exchange” with their boyfriends. It's a lot to take in, but Ina doesn't take long to catch on with all the beautiful men around. It's not all sexy time and butterflies, though, as the drama between her suitors and even other women crops up, but Ina's not going to let that get in her way. She will follow her heart and do everything she wants in this new world.