Shinkawa Shouichi (新川 昌一(しんかわしょういち), Shinkawa Shōichi?), known as XaXa (ザザ, Zaza?) in «Sword Art Online» and as Sterben (ステルベン, Suteruben?, German for "to die") in «Gun Gale Online», is the main antagonist of the Phantom Bullet Arc and a minor antagonist in the Aincrad Arc. He is one of the 10,000 players who were trapped in Sword Art Online, where he was a member of the infamous red guild «Laughing Coffin», nicknamed as Red-Eyed XaXa (赤眼のザザ(アカメのXaXa), Akame no ZaZa?) because of the red eyes of his skull mask. After being released from the game, Shouichi began playing Gun Gale Online due to the recommendation of his brother, Shinkawa Kyouji. In October 2025, the two brothers created and began executing the «Death Gun» plot, which involved giving the impression that they could kill people i