(Japanese pronunciation: [jaɾennoka]) was a mixed martial arts (MMA) event that took place on December 31, 2007 at the Saitama Super Arena in Tokyo, Japan.

[2][3] The event aired on HDNet and was billed as "Fedor Returns" in the United States; while it was shown on SKY Perfect, a Japanese pay per view network.

It was headlined by a fight between former Pride heavyweight champion and 2004 heavyweight Grand Prix champion Fedor Emelianenko and K-1 2007 World Grand Prix Finalist Hong-man Choi.

The undercard showcased many top lightweight fighters and was also marked by a marquee matchup of the Pride 2006 Welterweight Grand Prix Champion Kazuo Misaki and the Hero's 2006 Light Heavyweight Grand Prix Champion Yoshihiro Akiyama.

[4][5] The event was a farewell show to Pride fans after their acquisition by the Ultimate Fighting Championship in early 2007.