This song was originally uploaded onto Nico Nico Douga on October 15, 2010. It is Satsuki ga Tenkomori's 17th and most popular song.
This song is about being addicted to online video games, hence the title. In the song a voice in the background repeatedly says "RMT" and "MPK", which stand for Real Money Trading, meaning you gave another player real money for something, and Monster Player Kill, where you kill a rival player using a monster. This is used in MMOs like Guild Wars where a player killing another player is not allowed.