伝説のおっさん、ダンジョン配信者になる～世界最強がセカンドライフで配信してみたら即バズってＳ級の弟子が増えた件～

あらすじ

Thirty years since dungeons and magical beasts appeared all over the world. Tatsuya Kamiya, a 42-year-old man whose entire history was erased by the government for certain reasons, challenges dungeon-streaming to find a job. However, during the stream, he encounters a fearsome monster! When he unleashes his power against the monster, his existence becomes known to the world once again...!?