[1][2] She is best known for her roles in the films Kimi ni Todoke (2010), Usagi Drop (2011), Arakawa Under the Bridge (2012), Crying 100 Times: Every Raindrop Falls (2013), Jossy's (2014), Koisuru Vampire (2015),[3] No Longer Heroine (2015),[4] and Revenge Girl (2017), as well as television series Andō Lloyd: A.I.

[2] Her mother is originally from Hokkaido,[6] while her father is from Fukuoka Prefecture, where she would frequently visit her grandparents' house as a child.

After taking a two-year break due to her busy work schedule, she graduated in March 2015 after seven years of study.

It was fun.”[13] In 2005, while she was a freshman in high school, Kiritani was scouted by Sweet Power via a phone call at her home as "Chiba's number one beautiful girl".

[15] She then appeared in TV Asahi's drama series Kisshō Tennyo, and subsequently in the BS-i shows Tokyo Girl and Kaidan Shin Mimibukuro.

During this time, she became an exclusive model for Seventeen, a fashion magazine targeted towards teenage girls, from its April 16th issue.

[12] On April 20, 2015, Kiritani graduated as a regular model for the magazine Non-no in its June 2015 issue, which she announced on her blog.

[16] That same year, she starred in the original TV series Atelier, produced in collaboration with Fuji Television and American video streaming service, Netflix.

[21] In 2016, Kiritani had her first starring role in a Fuji TV Monday 9pm drama in A Girl & Three Sweethearts, which aired from July 11 to September 19, 2016.