Tada no Monban, Jitsu wa Saikyouda to Kidzukanai: Kizoku no Shitei wo Chuuishita sei de Kuni kara Tsuihousareta Node, Shigoto no Hikitsugi wo Onegaishimasu ne. E e, Dragon ya Kodai Golem ga Wai Tari suru, Tada no Gesuidou Soujidesu
ただの門番、実は最強だと気づかない～貴族の子弟を注意したせいで国から追放されたので、仕事の引継ぎをお願いしますね。ええ、ドラゴンや古代ゴーレムが湧いたりする、ただの下水道掃除です～
A gatekeeper at the capital of the Kingdom, Glendia, is ordinary and unremarkable. After stopping some disruptive adventurers, he is dismissed from his post and leaves without anyone noticing. Unbeknownst to him, his actions against dangerous monsters in the city's sewers have made him extremely strong. Believing he is still just an average person, he travels to the countryside in search of new work. He takes on a young apprentice, and the locals begin to rely on him, though he is constantly surprised by his own abilities. Confusion and mistaken beliefs lead him to become a hero without realizing it.