S1·E2 Beware of Nasty E-Mail

Yui finds out that IR wasn't a dream after all! She trys sending a message to her friends, but with the help of IR, she sends it by Comnet Mail. At school, Yui is asked a question she does not know, ""The Mouth Is The Gateway To Disaster"". Freaking out, Yui is forced to go to the Virtual Comnet World, with the command ""Corrector Yui Enter!"" While in the virutal world, Yui discovers that one of Grosser's Cohorts, Virus has infected the mailmen, and the messages that everyone sends is turned into something nasty. When Yui returns to the real world, she finally has the answer to the question, which she types in her computer. The answer is correct. After that, Yui and her friends go to Haruna's Birthday Party.