Summary:

One day the ordinary 2nd year high schooler Usami-kun accidentally encounters a big girl with a scary look. Turns out she's glaring at him, but why...!? Although Hitomi-chan looks like she's scary and awkward, she's actually a kind and adorable girl. This one shall be a happy, heartwarming slice-of-life comedy.

Resources:

http://www.mangaupdates.com/series.html?id=150621
http://mangacross.jp/comics/hitomichan/
http://twitter.com/Cyorisukenosuke