The Hidden Dungeon Only I Can Enter manga volume 8 features story by Meguru Seto and art by Tomoyuki Hino.

The King of the School Year Competition is on the horizon! For one day, the victor will be granted the rights of a king, able to issue any decree they want that the entire student body must obey. Eager to beat Noir, Emma seeks out some extra-special training to improve her chances. However, prepping for the battle soon becomes the least of her worries when buxom treasure hunter Mira arrives on the scene and immediately monopolizes all of Noir’s attention! Trouble’s on the horizon as Emma and Mira go head-to-head…but who will come out on top?!