Stone Panic!

Slur appears in the evening to the clumsey and dull secretary Yui, and presents her with Asteroid Stoneman. Yui, who was tired from work, thinks that the occurance is a dream and does not notice Stoneman, but she will the next day. After hearing Yui complain a little and thinking she is giving orders, Stoneman begins to run recklessly. Netto who's visiting the company Yui works for in response to a report of some lost articles gets taken in by the ruccus and must fight a substantiated Stoneman.
(Courtesy of Heat Man)