Poison Master Hikaru Gero is about to take on his most challenging assignment yet--getting married! Gero couldn't be more clueless when it comes to dating, but thankfully, marriage swindler Mei Kinosaki knows everything there is to know about love. Together, this unlikely pair is going to do whatever it takes to get Gero hitched--even if they have to take on the entire criminal underworld in the process!

Thanks to the help of Sound Master Naruko, Gero is fully recovered and ready to rescue Himi from a wedding from hell! But Ghost Master Sakazuki lies in wait, with plenty of tricks up his sleeve. And even if Gero manages to save Himi, will he ever realize her true feelings for him?