This is a parody of the .hack-series with appearance of the characters from SIGN, Udeden and the games:
As a thank you to the players of the .hack games, Helba has prepared a special hot springs for some much needed rest and relaxation. Tsukasa, Mimiru, BlackRose, Kite and the other important players of The World decide they’re due for some soaking in the springs themselves. There’s a catch, however: not only will Helba not reveal its exact location, but she insists that role-playing is forbidden. So who will find it first? And who keeps killing the other characters?
- It is also referred to as “Episode 29″ of .hack//SIGN.
- This OVA was originally a giveaway in Japan for those who bought all 4 .hack-games and will probably be included in the US-release of .hack//Quarantine.
Descriptions taken from AniDB.net