Ayane (??? ???) is a player character in the Dead or Alive and Ninja Gaiden fighting game series by Team NINJA and Tecmo Koei. Ayane has also a complex relationship with Kasumi, the leading heroine of the Dead or Alive series, ever since they grew up together. Even though she is often overshadowed by her Kasumi even in the real world, Ayane is still one of the most popular and recognisable received Tecmo characters. Outside of Japan she was also a subject of some controversy regarding her age and sexualization.
Ayane is an expert of ninjutsu; her deadly fighting style has given her the nickname "Female Tengu". She is Kasumi's half-sister, whom she bears jealousy and hatred for being a shinobi destined to live in the shadow of her older sister. She admires Hayate, her half-brother and also has some connections with Ryu Hayabusa, who is a trusted ally of the Mugen Tenshin clan.