The stage is Akihabara in the summer of 2010.
A college student who couldn't get rid of secondary disease, Rentaro Okabe, established the "Future Props Research Institute" and produced inventions of unknown purpose every day. However, one day, accidentally invented a time machine that could send electronic messages to the past.
Can't restrain the excitement of the invention of the century, and continue to interfere with the past purely out of interest. As a result, the great tragedy that swept the world fell on Okabe and others.
In order to avoid the occurrence of tragedy, Okabe's lonely battle began.
And can he overcome his fate in the end! ?
