魔王の始め方シリーズ (Series) favorite_border

[DeepL Translation - needs review] Volume 1 of Nocturne Novels, the men's site of the novel submission site "Shosetsu-kaerou" (Novelist's Letter), has finally been published in book form! An old man digs an underground passage alone. Suddenly, he is transformed into a young man with twinkling eyes. His name is Oulu. After a lifetime of research, he has finally qualified to become the "Demon King! For starters, he makes a contract with a beautiful succubus named Lil, He begins to create a vas...