<p>The main character loves the MMORPG game called Dan-Ex. During one<br/>particular day, a beta test event was announced, and he managed to beat it.<br/>In exchange for clearing the event, he was granted permission to try the beta test server.<br/>Forcing to choose different avatar and skill as the system doesn't allow his own, he eventually settled on random. However, he is transferred to a place where, as expected, he finds a fat, villainous mob character...!</p>