英雄女騎士に有能とバレた俺の美人ハーレム騎士団 ガイカク・ヒクメの奇術騎士団

Gaikaku, a genius mage with unparalleled magical skills, works under the bloated local lord Boric, taking on secretive missions to earn small amounts of money. At the same time, he devotes himself to magical research, surrounded by girls from various races in a quiet and free environment. However, after taking down an elite elf, his talents as a genius mage begin to spread little by little.