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～ (Associated Names)

A small dungeon is fine. And yet I create a massive and powerful dungeon. Chrono is an ordinary demon attending a dungeon creation class at the demon lord’s academy. Upon hitting 20 year’s old, Demonic Beings are encouraged to attend the academy and live there while perfecting the art of creating dungeons. Chrono thinks that…