Natsumi Hikari (A.R. World)

is one of the few last surviving humans in the World of Negatives. She confronts her prime counterpart in an attempt to warn her of Otoya's scheme, only to be forced to dig up the K-Touch she had hidden. She eventually gives her goodbyes to Natsumi while entrusting the K-Touch to Tsukasa, remaining in her world out of hope for the future.
==Behind the scenes==
===Portrayal===
Natsumi Hikari was portrayed by .
==Appearances==
* Kamen Rider Decade
**Episode 20: The Nega-World's Dark Riders
**Episode 21: The Walking All-Rider Album
Category:Decade Characters
Category:Kamen Rider Decade
Category:Allies