|Anime Debut||Episode 1|
|Voice Actor||Alexis Tipton|
Shimizu Megumi's 15 year old childhood friend, though the sentiment is one-sided on her part, as Megumi is disgusted by the Sotoba villagers in general and doesn't think any more highly of Kaori. Later, she and her brother Akira become friends with Natsuno and aids him in the investigation about the Shikis.
She has a pet dog called Love.
Battle Against ShikisEdit
Kaori and Akira are the first ones to notice Natsuno has been bitten by a Shiki and tries to warn his father. However, Mr. Yuuki disregards their advices, which eventually leads to Natsuno's death at Tohru's hands. Later, when Megumi gets wind of Kaori's increasing intimacy with Natsuno, she attacks Kaori's father and turns him into a Shiki. Kaori's father starts targeting his family and she fears for her life cowering in her house but she suddenly finds courage and finds her father entering the house, she is shocked for a moment but in an emotionless state she beats him to death, while Natsuno watches her outside the house, ready to protect her if he needs to.
When Natsuno appears to her, she thinks he is also one of the shiki trying to kill her and faints. Natsuno catches her in his arms and smiles, satisfied to see that Kaori has become brave and never stopped fighting for her survival.
In the anime, she was hospitalized with her brother alive asleep while she sees Natsuno before facing off with Tatsumi. In the end, she is last with her brother in bus where they see Yuuki and Kanami, but she's glad to see them awhile feels better and returned to her old self again
- Ryu Fujisaki commented in one of his interviews that Yuuki Natsuno and Tanaka Kaori would make an 'Okay' couple. But it is believed that he had hinted at it a little in the manga.
- In episode 7, she was almost bitten by Takatoshi Hirosawa.