After his father's remarriage, high school student Sasae Hatsushima moves in with his three new step-sisters. That's all well and good, until the whole family is summoned to another world! Will they be able to band together and survive in a brutal, unforgiving land?

HONEYMOON OR HONEY POT? Roped into an extreme version of the hit show Who Wants to Marry a Billionaire, Yuuna began the game determined to win. Now all she wants is to survive. With Yamada Saki as her newly-recruited ally, she prepares to square off against her final two rivals, one of whom has a secret criminal past. The final challenge is upon them: a lascivious game of Ultimate Honeymoon where their billionaire prize will lose his life if Yuuna and her allies can’t uncover the truth!

LET IT ALL OUT With the simulated sex challenge complete, four contestants remain in this dark version of Who Wants to Marry a Billionaire?-and two of them are former criminals. Yuuna teams up with the bachelor to propose a new challenge to smoke them out: a boozy party where they all have to drink so much that their true selves will burst free!

When Natsuki opens up about her traumatic past, Yuuna wants to help her fellow competitor. But is Yuuna just getting played? With the competition growing even more intense, people are starting to crack under the pressure - including the bachelor himself! The masks are off in the latest volume of the erotic thriller, Who Wants to Marry a Billionaire?

THE WEAKEST LINK BITES THE DUST In a struggle to win a man and his money, Yuuna and several other women use cunning to wrestle for his ring. The private beach stage comes to a close and another contestant is eliminated, but the battle is far from over. It's time to up the ante. What won't these girls do to come out on top?