Ameno is a kunoichi from Sunagakure and a team-mate of Kouji and Shishio.

Ameno is a skilled medical-nin who is able to increase the speed of a body's natural healing process by sending chakra from her hands into a wound on an afflicted body part. She is also able to perform fine minor surgery, removing countless poison barbs from an individual.

She can also use Water Release. She commonly applies this skill to supplement her medical skills. With it, she can treat poison-related injuries or act as a contingency plan against enemy attacks, healing herself and others. In actual combat, she can form giant pinchers of water to attack her opponent from a greater distance.