Tsukasa is the female protagonist of the Devils' Line series. She is a first-year graduate student at Keio University where she originally studied Humanities and Geography. She is a kind-hearted human girl who falls in love with Yuuki Anzai at almost first sight. Despite the difficulties of being in a devil/human relationship, she stays positive and is always trying to make it work. She cares about Yuuki and his suffering as a devil very much and is constantly looking for something she can do.

Tsukasa, a college student, is rescued from an attack by a devil, one of many vampires that can blend in among the human population. Anzai, her savior, is a half-devil who exploits his supernatural gifts as a member of a shadowy police task force that specializes in devil-related crime in Tokyo. As Anzai continues to keep guard over Tsukasa, the two quickly forge a tentative bond—one that Anzai fears will test his iron-clad rule of never drinking human blood...
 
(Source: Kodansha USA)
 
Note: Includes Chapter 29.5, 41.5, 46.5, and 8 extras.

Everything you thought you knew about vampires is wrong. They can walk in the daylight and holy water doesn't burn them. In fact, vampires can pass as normal humans so perfectly that even other vampires have trouble spotting them. Until they drink human blood, that is; then they transform into monstrous beasts who mindlessly rape and murder. But not all vampires are evil. The secret task force that patrols Tokyo's vampire population has several fanged operatives, including half-human Yuuki Anzai, who believes that his human heritage lets him resist his species' basest cravings. But after Yuuki rescues college student Tsukasa Taira from a vampire stalker, he realizes that he's succumbing to urges he's never felt before. 

(Source: Sentai Filmworks)

**Height:** 161 cm

[Twitter](https://twitter.com/YUI_STAFF) | [Blog](https://ameblo.jp/ishikawa-yui)

She is married to a person outside of the industry and has a child.

__Non-anime roles:__
- Rapi - Goddess of Victory: Nikke (VG)
- Stelle - Honkai: Star Rail (VG)
- Clorinde - Genshin Impact (VG)
- Lucia - Punishing: Gray Raven (VG)
- Asuma Toki - Blue Archive (VG)
- YoRHa No.2 Type B - NieR: Automata (VG)
- Yangyang - Wuthering Waves (VG)
- Risette Twinnings - The Legend of Heroes Series (VG)
- Maria Alces - Metaphor: ReFantazio (VG)
- Lige - Reverse Collapse: Code Name Bakery (VG)
- Ouska - Reverse Collapse: Code Name Bakery (VG)
- Shrike β & Mitotic Specimen - Reverse Collapse: Code Name Bakery (VG)
- Halara Nightmare - Master Detective Archives: Rain Code (VG)