Lets get this out the way, I found myself having to pause almost every chapter due to my 'son' going on a rampage; that is to say that Maken-Ki! is chalk full of super ero scenes (damn near hentai level) thus why i gave a 10/10 enjoyment because of my guilty pleasure of trashy ecchi mangas. The story on the other hand (7/10) for an artist who has done nothing but hentai all his life was surprisingly decent but kind of felt empty at times as well as the author Takeda Hiromitsu's obsession with NTR which some might find triggering and if so then this manga is not for you. The characters were good (7/10) but lacked personality and background but I suppose that is to be expected from a manga of harem genre. TYPICALLY I dislike the genre due to the greed of the main character wanting to hog all the fishes for themselves but I enjoyed how the boys 'shared the wealth' in this particular manga which is another reason why I enjoyed this manga even with its plot holes. Finally Takeda's art 10/10. I don't know how to word it but this mans art is other worldly and is amongst my top 3 favourite artists, he knows exactly how to draw women that will have you mesmerised and his ahegao faces are top notch and to my surprise, (having underestimated him) can draw amazing fight scenes as well as draw males (majority of artists focus on the female cast and leave the male characters looking dead however) Takeda REALLY knows how to draw and is amazing with it but all is not well. Like i said earlier, Takeda has a strange obsession with NTR which USED to be too much for me but drawn to his art I had got used too however this might be a steep one to climb for others. ALL his work includes NTR and therefore is difficult to get into but if you can overlook that then this work is a great read. 6/10.
Lastly a note to the artist: If Takeda can ease off the NTR and focus more the story and world building then i'm sure one day this man will create a great manga