Hazure Skill: The Guild Member With A Worthless Skill Is Actually A Legendary Assassin Novel Volume 4 is written by Kennoji with illustrations by KWKM.

Roland is the Adventurers Guild's ace in both name and deed, and a former legendary assassin. For his next quest, he is sent to help rebuild the Hadenberg Kingdom, which has been torn apart by war with the demon lord’s army. There’s far more waiting for him than a normal guild assignment, however. Someone is scheming to kidnap a queen that Roland just happens to have met before...