Classic tanigushi stuff. excellent art with lots of efforts placed on information, weapons and vehicles.
Not a groundbreaking story, but that late 70's hardboiled hero vibe is a now lost...
if you land on this and wonder, yes, tanigushi had a hard on for detectives and investigative stories and he's made great titles like "a distant neighboorhood" and "trouble is my buisness", to name a few.
both i would recommend more than enemigo. and i do own both. better writing really pull's tanigushi's pen to heights you rarely see, ever, in manga.
I would also recommend seton and a bright blue sky.
It's really sad that this man has passed away.