Slice-of-life without significant romance elements is pretty rare, probably since romance is easy to build a plot (and hence, characters) off of.
Usagi Drop is the only other anime that comes to mind, but it doesn't have a college setting. Also I just checked the wikipedia article, since I only watched the first couple of episodes and holy crap spoilers I did not see that ending coming, and I guess rule out 'no/light romance'.
I finally finished watching Usagi Drop, a short 11 ep series about a man adopting a six year old girl from his now deceased grandfather (a very young aunt, basically) and I liked it alot. The art is amazingly simple and sweet, and it's just a little slice of life sorta series about a single father raising a daughter, every episode is packed wall-to-wall with touching moments. Shit's amazing yo.
I really regret looking it up on Wikipedia now, as it spoiled the ending of the manga it was based on which takes place after the end of the anime, and shit gets creepy, holy fuck man. It retroactively poisons the good feeling the entire series was rolling with up til then. This is why we can't have nice things apparently.
I honestly expected the big 'Climax' of the series would've been the Mangaka finishing up her 'moment in the spotlight' have having an income nest-egg so she can afford to look after the child, and therefore asking for her back.
Because he never formally adopted her, he doesn't really have much basis to say 'no', and it could've been a really dramatic turn.
It would've actually made me feel a lot better about the actual ending
Actual ending:
"I actually love you and don't see you as a dad figure"
"I still see you as a daughter figure and this is fucking weird for me but okay sure"
That could've been handled way differently too. Did he just give up on the single mom? Did she find a man, and he was left 40 years old and regretful?
I feel like there was so much more opportunity for three-dimensional characters which didn't happen. But, not having read the actual manga, maybe it was done more classily and I don't know.