Burn the Heretic. Purge the unclean.
This is a story about a hard bitten co and his little girl sword elf partner from another world. Together, they fight crime!
The guy in the suit is Kei Matobo, apparently a Japanese American and naval veteran of the Isekai war.
The elf girl is... well I'll let her explain that,
So yeah, kind of a mouthful.
Anyways. A hyperspace gate mysteriously opened in the pacific to another world of wizards, knights, fairy's and what not. So up pops a major metropolitan area called San Teresa City where the two worlds intermix. Judging from the Miranda rights being read along with the police badges and American flag in the police office the setting is decidedly American.
Episode one is up on Hulu and maybe Crunchy Roll.