Ero Wizard’s Research Journal summary: The warrior who helped save the world five years ago is left feeling empty. Deacon, a former warrior, has since been reduced to a beggar. Hoping to earn for a living, he signs a contract to work as a research assistant for a wizard named Lagavi..."Five years ago, you were dealing with so much more. You are the only one who can cope in an event of an emergency. So, please do your best", the wizard said as he smiled innocently.Little did Deacon know, nothing was what he'd initially expected~