[Hihou] Comyuryoku 0 no Otaku Shoujo, Dragon wo One Punch de Shizumete Yuumei Haishinsha wo Tasuketara Fuhoni Buzz ga Tomaranai

Dungeon explorer Ruri Onimaru is a shy otaku girl with zero communication skills, but after she saves Mint Natsume, a hugely popular streamer with over 2.5 million subscribers, during a dungeon exploration livestream, Ruri accidentally goes mega-viral! Desperate to avoid attention, Ruri starts one-shotting monsters just to get things over with... only to become an overnight internet sensation!?

(Source: Hifumi Shobo, translated)