It's a competent sports manga – even though the mechanical aspects of baseball really overtake the story by the end and are presented throughout without outsiders in mind – but the characters piss me off. The crux of the story is a quasi-love triangle which is less a love triangle and more a sadistic cuckquean slowburn where one girl continually gets humiliated and reduced to no importance, never coming to with her envy. She doesn't get the chance to seek out any dignity due to how rushed the final chapters are; her only purpose in the story is repeatedly remind herself of her own failure and never move on.
It feels like there are 10 missing chapters from this series because it just kinda ends... It makes one wonder why the girl and the subsequent love triangle were even inserted, as the overall narrative would be equally coherent without her if not more so; I can only surmise that the author is fulfilling some sick fetishes. It does not help that the romance plot between the two lovebirds is conceptually flawed in its own right – and I'm not even talking about how inappropriate the relationship between a high school teacher and a student is – and there's some really major arsepulls that make no sense.
If you like baseball, you will enjoy the technical aspects, but ultimately it's about the characters, and I just gotta say... step aside if you don't like NTR.