Las tareas del as asesinos

Three assassin's, two married, one single and quite frankly tired of being alone. One day they all get set up to murder the other/s, specifically requested to use seduction first and foremost before absolutely anything else. All three thought this a strange request as the married couple was asesexual, as well as the single one. However, none of them new this of course.

What happens when instead of completing the job they were tasked, the pair actually become infatuated with the single and just can't bring themselves to do it? While as much as the single is infatuated with the others as well, what happens when the money is much more needed then a love life?

All translations in this book use google if anything is incorrect please feel free tto politely correct me in the comments