更新日 2026-09-24

Daimeikyu no Atoshimatsu

原作 仁香荷カニ 作画 Mカフェ

芝崎一郎（45）は激務・薄給のダンジョン清掃員として働く、冴えないおっさん。いつも通りの業務中、モンスターに襲われた少女を発見した彼は、デッキブラシ一本で強敵を瞬殺！ 名も告げず立ち去ったが、なんと少女は超人気配信者だった！ その姿は配信を通じて大バズりし、ネットでは「正体不明の最強おじさん」として話題騒然。大手ギルドやS級探索者、あらゆる大物たちが躍起になって芝崎を探しはじめ…!? 平凡なおじさん清掃員による、無自覚痛快ファンタジー、開幕！ Ichiro Shibasaki, 45, is an unremarkable dungeon cleaner who works a demanding, poorly paid job. One day, while carrying out his usual duties, he discovers a girl being attacked by a monster and instantly defeats the powerful creature with nothing but a deck brush. He leaves without even giving his name, but the girl turns out to be an extremely popular streamer, and footage of Ichiro effortlessly rescuing her goes massively viral. Before long, major guilds, S-rank explorers, and other powerful figures begin desperately searching for the mysterious “strongest middle-aged man.” Thus begins an exhilarating fantasy about an ordinary dungeon cleaner who is unknowingly becoming a legend.