Responses
Most of these are manhwas except for the two bottom but hope you enjoy
http://www.mangago.zone/read-manga/mercenary_enrollment/
http://www.mangago.zone/read-manga/nano_machine/
http://www.mangago.zone/read-manga/legend_of_the_northern_blade/
http://www.mangago.zone/read-manga/polarity/?5WGR
http://www.mangago.zone/read-manga/mashle_magic_and_muscles/
Any recommendations of mangas that got you hooked in the first chapter? Something like aot. And Id prefer if there was no romance involved.