Honestly, it should be rated 18+ because of all the <snip> feels. I love this anime to absolute DEATH. It is a beautiful work of art where the creators knew how to truly trigger feelings (With Sword Art Online Arc 1 (Not Alfheim)). I honestly cried when watching this, multiple times. It's honestly so sad, how these kinds of things happened.
IN CASE YOU HAVE NEVER WATCHED THIS ANIME READ BELOW
This anime follows a young boy and his adventures in the virtual reality gaming world. He was a beta tester in a game called "Sword Art Online". As soon as the game was released and the servers opened, people realized that they couldn't log out and started to panic. The GM came on a screen in the sky and stated that the only way to log out, was to beat the game. People took it as a joke, until they too realized they couldn't log out. The GM also stated that when you die in game, you die in real life.
I HIGHLY suggest watching this anime. Season 1 is on netflix, season 2 (Gun gale online) can be found at Http://Watchsao2.com
Episode 7 comes out (subbed) on sunday (I think).
Tried my hardest not to give spoilers for those who haven't watched~!