The classic 90s OVA series Gunsmith Cats was nearly non-nude, so I was pretty damn surprised to find the original manga it was based on was full of debauchery and pointless nudity- there were even a few sex scenes.
(Note: there are multiple galleries below that can only be viewed in gallery mode separately. Shortcut: Gallery 1, Gallery 2)
Gunsmith Cats (9 volumes, complete)
Gunsmith Cats – Burst (5 volumes, complete)
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The download link above contains both series.
Gunsmith Cats began as a spinoff to the unsuccessful pilot episode anime Riding Bean. Cats had a pretty nice run in the 90s, then followed up with a eight volume sequel a decade later, entitled Gunsmith Cats – Burst. Currently, only five of the eight volumes of this sequel have been scanned and uploaded on the internet.