* !asset #21018560
* !asset #21018561

Voice of [[Reisen Udongein Inaba]] in [[cookie_(touhou)|Cookie☆☆ S3]] and [[Kaenbyou Rin]] in Nabe☆. As Reisen, she has [[swept bangs]] and a single bent ear, often [[breathing fire]] from a random one-shot joke in 2015. She is still active as a [[virtual youtuber]].

She was initially the least popular character of Cookie☆☆ S3, with almost no fan art or MADs. However in 2016, a single user by the name of [[Ants (cookie)|]] began posting MAD ranking videos as if she was a popular character like [[Majime-kun]]. Other users began ironically making MADs starring Hisui, which would then get added into Ants's rankings, which would then cause more people to watch them. This began the "Unprecedented HSI姉貴 Boom" where derivative characters with almost no connection to anything Hisui herself ever did were made. 

This rapid escalation also caused a number of running jokes. One that carried over from Reisen is fake or detachable ears, except that Hisui's aren't and ends with her comedically spewing blood everywhere. Another is Reisen's affinity for guns, except Hisui prefers shotguns alongside [[Rurima (cookie)|]]. Her voice remixes include [[chirumiru]] and [[shin takarajima (song)|]].

Parody derivative characters include:
* [[fake hisui (cookie)|Although-she-is-a-fake-but-she-looks-like-a-nice-person Hisui-san]]: an intentionally poorly drawn version that is animated extremely well as a joke
* [[Metal Hisui (cookie)|]]: a robot version that can shoot lasers that turn anything to metal and fly. Created by a relatively unknown (at the time) MAD maker named [[Jiko Mujun]].
* [[Dragon Hisui (cookie)|]]: Hisui's fire breathing joke taken to the extreme
* [[Black Hisui (cookie)|]]: A [[dark-skinned female|dark-skinned]] and lewder version. 
* [[Meat Hisui (cookie)|]]: created by a MAD maker known by Ishikei, she is now completely meat. 
* Child / baby Hisui: an [[aged down]] version. Often NSFL. 

h4. External Links
* Youtube channel: https://www.youtube.com/@t_hisui
HSI姉貴 緋翠姉貴