Jimi na Oji-san, Jitsu wa Eiyuu Deshita. Jikaku ga nai Mama Musou Shitetara, Mei no Dungeon Haishin de Sarasareteta You desu
The Plain Salary Man Turned Out to Be a Hero: He Was Invincible, Only to Be Exposed on His Niece's Dungeon Stream·地味なおじさん、実は英雄でした。～自覚がないまま無双してたら、姪のダンジョン配信で晒されてたようです～
Keita Sato is a 41-year-old single man working a demanding corporate job. To cope with stress, he visits modern-day dungeons and fights monsters. His niece Hikari secretly follows him and livestreams his sessions. Her videos go viral, revealing his extraordinary combat abilities. Keita's actions attract attention from viewers and popular streamers. Unaware of the growing interest, he becomes an unexpected sensation.
