Isekai Investigations Bureau

On his death bed, Haruto Kishinami is given a chance to live an immortal life working for the High Heavens. The job? Hunt down illegal isekai victims and bring them back home. When folks get sent to another world, who do you call? The Isekai Investigation Bureau! The only way to save an overpowered protagonist is to be even more overpowered--and that's where Haruto and his fellow investigators come in! It's time to see what the worlds have to offer--and what crazy powers they'll have to stop!