Hazure Skill: The Guild Member with a Worthless Skill Is Actually a Legendary Assassin, Vol. 3 (light novel)

In recognition of his skills and accomplishments, the guild master promotesRoland,
former legendary assassin, to the position of tactical advisor. AsRoland directs a
large-scale quest at the behest of his superiors, however,he finds his
old companion Lina in a strange cavern—and a maliciousforce using
her magical powers for evil!