hello bro or sis!! i am so bored now, can u give some recomendation manga for me to read.
please don't give me a shit. Sorry, i mean :
* i want at least hit 70 chapter or more.
* no shojou please.
* romance is ok. ecchi also ok, but not to much.
* mahwa or manhua also welcome (something like yaosenji or doulou doulu, orange marmalade or noblese i really like it)
* if u can please give me some more from KODANSHA. (actually i looking for manga from this publisher)
* setting on middle age is better. (attack on tittan, vinland saga, berserk, etc) more conspiration please
* this manga that i have read recently :

ballroom yakousho
yaosenji
noblesse
baby step
nanatsu no taizai
ran and the greyworld
again
stavaganza bla..bla... hime (sorry, i forgot) (less chapter, but i like it)
gantz
inuyashiky
cage of eden

anyway, some from kodansa is better. thanks for u answer and sorry about this silly typo and my bad english.

Well if you're up for some scifi cyberpunk greatness, check out Akira

GTO is pretty great. It's a favorite of many, but doesn't exactly fit what your looking for

Wanting something from Kodansha specifically is a little weird, mind sharing why you want their work?

Check out Gate - Jietai Kare no Chi nite, Kaku Tatakeri for the medieval setting
Berserk is a classic that you have to read, falls in line with the grittiness of Gantz and the middle age setting
Vagabond is another classic, but it isn't exactly what you're looking for either.
Superior is a little heavier on the romance, but a pretty good read

It'd be much easier to recommend stuff if you gave some more about info about what genre you're looking for. Also if you aren't old enough for mature themes, don't read Berserk and to a lesser extent Vagabond or Akira. It's not so much that I don't think they're appropriate (which they aren't) but you won't be able to really appreciate them unless you can fully understand those themes.
Again not trying to be condescending

https://www.mangaupdates.com/series.html?id=27595 has a sequel
https://www.mangaupdates.com/series.html?id=2111 has a few sequels
https://www.mangaupdates.com/series.html?id=1580 has a sequel
https://www.mangaupdates.com/series.html?id=574 has sequel as well,,, lol
https://www.mangaupdates.com/series.html?id=103618 no sequel yet, still ongoing

^^^none of these have middle ages type settings but they are still pretty good^^^.... I dont know how to do the whole url thing looking like the title... There is also a manga called "blade play" that is a world slip setting in the middle ages, but its a bit like a borderline hentai thing... its funny though lol

It looks like you like long action mangas so thats what I looked for
Gokusen is one of my favorites
Hagane no Renkinjutsushi is an excellent classic
the Breaker is great and has a sequel
Yu Yu Hakusho is another classic

Try Arslan Senki