Ojousama-kei Teihen Dungeon Haishinsha, Meiwaku-kei wo Bokottara Bazutte Densetsu ni Nattemasu wa!?

The original story is set a few years after dungeons began appearing in the modern world. Karin Yamada is a "dungeon streamer," a new kind of streamer who live streams their expeditions in the dungeon. Though she has adopted the character of a classy rich lady, with zero views and three subscribers, she is decidedly obscure, and depressed about it. One day, she stumbles on an adventurer trying to stir up trouble for views by causing an explosion in a dungeon. Karin immediately leaps into action and stops it by beating up the adventurer. Little did she know that the adventurer was also streaming to a wide audience, who all saw her beating up and lecturing the adventurer. The incident propels her to overnight popularity. (Source: Anime News Network)