The Asano ninja sisters are a group of female Japanese Virtual YouTubers, Kunoichi triplet sisters who originally used the same 3D model but with color changes. The project was originally planned to be only one character, Hikari.
- Ruri (瑠璃) - eldest sister, blue hairband, purple eyes. Often refers to herself as "onee-san" or big sister. She is the most active in the project and very responsive to fans, on Twitter and during livestream chats. Good at singing, she always works hard and sometimes enjoys alcohol afterwards. In December 2018 she debuted a new model, replacing the headband with a blue flower hairpin.
- Akane (茜) - second sister, pink hairband, red eyes. Has not been active since June 2018 as she is on a ninja training journey before making her return on 7 April 2019.
- Hikari (光) - third sister, purple hairband, yellow-red eyes. Many of her posts are videogame let's plays. On 19 February 2019 it was announced that she would graduate / cease being a VTuber.
- As part of an attempt to reach 10000 YouTube subscribers, Ruri did a 100-song challenge video, singing over a period of almost 5 hours.
- In a livestream, Hikari started crying while describing how appreciative she was of her big sister's efforts to help their project gain popularity, which is difficult in the crowded VTuber market.
- On 15 December 2018, Ruri did a 110-song challenge, including a 111th which was an original song.
- On 22 January 2019, it was announced that Ruri would be a voice actress for a character in a small game by doujin group Charon.
- On 24 March 2019, Ruri had her first VR live event on Cluster.