Jishou! Heibon Mazoku no Eiyuu Life: B-kyuu Mazoku nanoni Cheat Dungeon wo Tsukutteshimatta Kekka  

Self-proclaimed ordinary demon's heroic life: The result of him creating a cheat dungeon, even though he's supposedly a B-grade demon, 自称！平凡魔族の英雄ライフ ～B級魔族なのにチートダンジョンを作ってしまった結果～

A youthful demon named Chrono Alcon journeyed from his modest homeland to attend a distinguished academy linked with the Demon King's royal palace. To conceal his humble origins, he endeavored to maintain a discreet profile... However, when his exceptional performance in his initial exam captivated not only his captivating classmates but also the Demon Queen herself... Chrono came to terms with the possibility that his aspirations for a "blissful, typical school existence" could be jeopardized in the very depths where he might perish.