Read up to ch 155. Up to the whole marriage arc, which is **** btw.
Anyhow.
Translation- (which I consider grammar in this case) 3 stars. While the author won't get any rewards for his writing, it is readable. Although some parts are so messed up you won't get a notion of what's going on without reading few paragraphs.
Stability of updating.-5 stars. I'm rating purely speed here. Although now it slowed down, I remember days when there would be mass releases every three or so days, so yeah, good job.
Story development. 1star.- while some people would say this is unjust, I would say it's well deserved. The MC goes and does whatever he can wherever he could without worry for consequences. Half the time he's chasing skirts, the other time he is conversing with his system for few chapters straight, after which he gains power-ups but still gets his butt kicked.
Character design 1 star.- again, it's just in my opinion. The MC is shallow paedophile, there's no denying that. He goes around and humps 10-year-olds or so girls because can't keep it in his pants. His 'parents' are cheering while he goes and humps two young teens on the second floor. The father is a typical idiot, who half the time talks sex jokes, the other half says creepy things, like what position they used. The mother has no substance, the only emotion she has is a worry for her op son. The other characters, namely his harem, just want his D and that's it. His enemies, namely Madara, goes to his side after one conversation. The whole plot revolves around one village.
World background. 1-star. The whole plot stays in one village. That's it. No political games, no ninja that act like a ninja, everything falls into mc's hands without struggle, while the written colours of the world might as well be grey.
Finally, I'd say an author should go for quality over quantity. Cuz, while he gives two chapters or so to his titles every week, they are unsubstantial and bad filler material. Also, the ego of author is...bad....