Slotter Cherry the Explosion - Legend of 777 Queen -

Nishihara Chieri, who works at a financial company, lives a modest life. One day, she is deceived by her boyfriend, Muneo, and ends up in debt of 5 million yen. If she doesn't pay it back within a month, he will find out and fire her. She frantically tries to find money, but she can't seem to save up any.