Anime

The Hidden Dungeon Only I Can Enter (俺だけ入れる隠しダンジョン 〜こっそり鍛えて世界最強〜) is Japanese anime series based on the fantasy light novel written by the Note Takahana.

Plot
An unexplored and unreachable dungeon where rare items are hidden and rare monsters infest the world- "hidden dungeon".

Fortunately, it was the poor aristocrat's third son Noru Starga, who opened the door. When he meets the legendary adventurer Olivia Servant, who is trapped in the labyrinth, Noru is endowed with three powerful skills.

Cast

 * Ryota Osaka as Noru Starga
 * Miyu Tomita as Emma Brightness
 * Rumi Okubo as Lola
 * Yui Horie as Olivia Servant