The Hidden Dungeon Only I Can Enter

The Hidden Dungeon Only I Can Enter (俺だけ入れる隠しダンジョン, Ore Dake Haireru Kakushi Danjon) is a Japanese fantasy light novel series written by Meguru Seto and illustrated by Note Takehana. It began serialization online in January 2017 on the user-generated novel publishing website Shōsetsuka ni Narō. It was later acquired by Kodansha, who have published volumes since August 2017 under their Kodansha Ranobe Books imprint. The story follows Noir Starga, the third son of a poor noble family, who discovers a hidden dungeon that only he can enter. In this dungeon filled with rare treasures and powerful monsters, he meets the legendary adventurer Olivia Servant, who is trapped inside, and gains powerful skills. To change his fate, Noir begins training in secret, continuously improving his strength and striving to learn at the Hero Academy. The series was subsequently adapted into a manga and a television anime. The manga, with art by Tomoyuki Hino, was serialized from May 2018 to June 2023 on Kodansha's Niconico-based manga service Suiyōbi no Sirius. The anime, produced by Okuruto Noboru, aired from January to March 2021. The series is licensed in North America by Seven Seas Entertainment.