Question

Markis86 said:
Not sure if you watched it yet, or not, but apparently the above comment is incorrect. The anime is a complete adaptation of the full story. It merely misses elements along the story but has the same ending based on comments in the episode 12 thread. Thus if you are wondering if you're really going to get more out of it or not, especially a conclusive ending, then that is basically a no, especially with this type of series. It will be more or less of the same and end the same.

EDIT: Okay, I just read through it because holy is it actually really short. Don't waste time on the manga. I'm actually quite impressed the anime managed to salvage one of the worst manga writings I've ever seen. The manga is, quite bluntly, a terrifyingly incoherent fractured disaster. Its like a slice of life series that just has brief moments of events pop up and you're left to feel in massive gaping gaps of what is going on and to imagine why, how, etc. It is inconsistent, too, and has some very strange if not totally unsettling character and event changes such as the situations surrounding Yoshizawa (like all of it, the romance, his future, who he became out of no where, etc.). The ending of the anime is far more positive and open where the manga is a sudden 180 for the main romance and near totally shuts down any future between the two while leaving a lot of questions that don't really jive with the story told up to that point or who the main character is. The ending, itself, could have been okay if it wasn't a fractured mess with such gaping holes but it is and it can't be saved. Fortunately, the anime handles it a lot better even if such open endings are a cop out, especially for a difficult subject like this series' age difference problem. It does skew towards the direction of the manga and that they wont be together but not totally. Its quite muddy but still significantly better than the manga that will leave you with a bad taste in your mouth. Even within a given chapter it jumped around constantly with just brief takes of a scene then skipping on and they were often not fully coherent unlike the anime. You absolutely have to use your imagination to consume the manga much more than any story I've ever seen.

Lemme put it this way, the most common comment I found in the final chapter when looking online was simply this:
I enjoyed this anime even if it had its issues, in an overwhelming contrast to I think this manga just became my most disliked manga ever.