If You Are Tired Of Romance, Harem And Ecchi

nice art (I don't like the eyes but everything else is ) + logical plot + best characters: all smart, rational + absolutely NO ECCHI, ROMANCE OR HAREM.
Especially love Kei, no doubt my most favorite MC: Kei is intelligent, practical, good-natured (if you read all the signs) but definitely not the usual stupid cookie-cutter hero who is always ready to jump in and save the world.

Post-apocalypse, cyberpunk, cyborgs
MC, a powerful, mysterious loner, is on a mission to search for a human with special gene - the key to save humanity
simple plot yet confusing story (lol) as there are many made-up terms and almost no explainations, no dialogues but it sets the aesthetic vibe so I'm not complaining
stunning art work (seriously it's lit ) + amazing world-building + unique vibe

weak -> strong, martial arts
hands down, the best martial arts manga
(1) Yuu's development (mentally and physically) is logical and reasonable, he practices relentlessly, thus becomes stronger gradually.
(2) all fights are practical, the mangaka always make sure to explain the moves carefully
it does have little romance at the end but bearable

Dystopia, post-apocolypse, guns, prodigy MC
MC, a young sniper, together with his broken android, lives like hermits in an abandoned city until one day, he saves a woman & she invites him to live in a commune
with refined art + twisted characters + antihero MC + non-stop action, it's genuinely one of a kind in the most barbaric way. MY ABSOLUTE FAV
several scenes of sexual violence that might be upsetting for some but not me im going to hell

dark comedy, magic users, demons, amnesia MC
MC got cursed by an mysterious sorcerer got a reptile head + a man's head inside his mouth + amnesia
AMAZING artwork + incredible world-building + lovable, well-written, charming, witty, morally grey characters
HIGHLY RECOMMENDED
has some nudity with big voluptuous breasts (but surprisingly doesn't really bother me and there's no romance, harem)

COMPLETED, twins, mystery, unexpected storyline, dark comedy
truly original and creative, it's weird, a bit creepy and eerie (serious why the hell is everybody acting all suspicious???), but there're funny, happy, heartwarming moments too
I have never read something as unique as this IT'S PERFECT

zombie, post-apocalypse
survival journey of a white cat and her "owners" in a zombie-apocalypse world
one of the best (and honestly the most unique) zombie apocalypse manga. It still has that gore, angst, survival element of a zombie manga but mix with adorable, heartwarming moments (especially if you're a cat person)
such a bummer that it only has 40 chapters

MC can see others' problems and draw those out
unique and fun concept + refined art + lovable characters
The manga is witty, charming in its own way and you can relate to the characters' problems, the MC is such an awkward geek it's adorable and hilarious

mountain-climbing, psychological
first ~30 chapters: art style + story are generic sports shounen manga
but after Yumi's incident arc, everything (artstyle + character development + dialogue + storyline) improves tremendously
if you want a good sports manga with amazing psychological aspect, this is it

COMPLETED, human experiment, genius MC
Nice art + likabe characters + good character development + well-paced, logical plot + no romance/ecchi at all