Kissed by the Baddest Bidder is an otome game by Voltage Inc. You are a maid at Japan's first casino hotel where you stumble onto it's dark secret, the black market auctions, and end up being bought by one of the bidder managers.

Working at Japan’s first hotel & casino, you stumble upon a black-market auction, and end up as one of the items for sale. “I’ll let you decide who buys you.” Five men place the winning bid, and now you’re completely at their mercy…