She is Sion&#039;s best friend. Safu seems to be in love with him, but if he returns her feelings is unclear. The evening before she leaves, she asks Sion a favor, to have sex with her. He promised when she comes back in two years, he will grant her request.     ~!She comes back to No.6 (in the anime, whereas in the original novel she doesn&#039;t even leave the city) when her grandmother dies. After talking to Karan she tries to look for Shion on her own, but is captured by the police and taken to Public Order Department and her fate remains unknown for a while.    It is later revealed that she has been taken to the Correctional Institute where scientists conduct various experiments on her. Shion and Nezumi try to rescue her, but when they finally reach the Institute, it is already too late as she&#039;s been fused with wasps in some sort of system controlling the city. She aids them in their escape and asks them to destroy whole system along with her. She goes out with a smile without regrets.!~

In a near future world, after the last great war, most of mankind lives in a handful of city states. There, for the privileged elite, life should be perfect. But for young Shion, the only thing perfect has been the nightmare his life has become since letting a strange boy called Rat spend the night in his apartment. 
Banished to the outskirts of the city and stripped of all privileges for helping the mysterious stranger who has since disappeared, Shion now finds himself in even worse danger as his inquiry into a new series of mysterious deaths results in his being arrested on suspicion of murder! 
But even as Shion is being sent to the city's Correctional Institute, the long-missing Rat reappears to rescue him! Now on the run, the two young men have only one chance at survival: uncover the mysterious secrets that lie at the sinister heart of No. 6! 
(Source: RightStuf)


[Website](https://avex.jp/kiyono-yasuno/) | [Blog](https://profile.ameba.jp/ameba/kiyono-yasuno) | [Twitter](https://twitter.com/Yaskiyo_manager) | [Wiki (jp)](https://ja.wikipedia.org/wiki/%E5%AE%89%E9%87%8E%E5%B8%8C%E4%B8%96%E4%B9%83) | [YouTube](https://www.youtube.com/channel/UCEQScK4V7gy34xEFGjNH6Hw) | [Instagram](https://www.instagram.com/kiyonon_at_home/)

Kiyono's hobbies are watching stage plays, films, comics / manga and singing karaoke.

Kiyono Yasuno is a member of the real-life idol group [Walküre](https://anilist.co/staff/226500/Walkre)

__Non-Anime Roles__
- Palema - Granblue Fantasy (VG)
- [Hoshiguma](https://anilist.co/character/174800/) - Arknights (VG)
- Ade - Goddess of Victory: NIKKE (VG)
- Pearl - Honkai: Star Rail (VG)


For Shion, an elite student in the technologically sophisticated city No. 6, life is carefully choreographed. School, study, and the occasional visit with his friend and classmate Safu. One fateful day, however, he takes a misstep, sheltering an injured boy his age from a typhoon. Known only as Rat, this boy is a VC—a fugitive living outside the computerized tapestry of city control—and helping him will throw Shion’s life into chaos and start him down a path to discovering the appalling secrets behind the superficial perfection of No. 6.
 
(Source: Kodansha USA)