High school girl doing medieval knight fight sport.

Serialized in G's Magazine, but the author also post the pages to Twitter.
Not sure if this can be uploaded or not.

Link to chapters and pages: http://togetter.com/search?q=+%E5%B0%91%E5%A5%B3%E9%A8%8E%E5%A3%AB%E5%9B%A3%C3%97%E3%83%8A%E3%82%A4%E3%83%88%E3%83%86%E3%82%A4%E3%83%AB&t=q

http://en.wikipedia.org/wiki/E233_series#E233-1000_series (mirrored)

The 4 blocks where the service type (here likely local) is displayed are a fast shutter speed artifact.