|Relatives||Rumi Fujisaki (daughter)|
Yūsuke Fujisaki (adoptive son)
|Manga Debut||Chapter 81|
|Anime Debut||Episode 3|
Akane was close friends with Ryōsuke Kirishima and Haru Kirishima (Yūsuke Fujisaki's biological parents). When Ryōsuke lost his wallet, Akane tagged along with him, where she witnessed Ryosuke risking his life to save a young boy named Taisuke Mishima from being hit by a car. Akane told Ryosuke to be careful, and when Ryōsuke joked about dying, she gets offended by his humor. Moments later, Ryōsuke found an elderly lady who has collapsed, and he helped her. Over at her son's home, Akane found out that the elderly woman wants to pay Ryōsuke, 1 million Yen. She urged Ryōsuke to reconsider taking the reward, but Ryōsuke declined the offer. Instead, Ryōsuke receives a "Joint Man" doll. On the way home, Ryōsuke and Akane bumped into a nerdy man who wanted to buy the doll. When Ryōsuke sees that the man has his wallet, he learned that the man has spent his money on the camcorder that Ryōsuke wanted to buy.
Years later, Akane attended Haru and Ryōsuke's wedding and Akane drives Haru to the hospital on the day of Haru's birthday. A tragic event occurred when Akane's car hits another car, Dr. Tsubaki's. The doctor and his wife hurries Haru to the emergency room, and as Akane waits outside, Haru passed away after telling the doctor to adopt one of the twin boys. Unbeknownst to Akane, she took care of Yūsuke without knowing about Yūsuke's twin brother.
After the death of Bossun's parents, she kept the truth about them from Bossun until he figured things out on his 15th birthday.
Back in high school and during the time when Ryōsuke Kirishima and Haru Kirishima were alive, Akane has short brown hair. Now, she has brown eyes and long, brown hair that reaches past her nape to her shoulders and she has a beauty mark near the right corner of her lip.
As demonstrated in the scene where Mamoru Ozaki tries to reward Ryōsuke Kirishima, Akane seems to love money and she is quite playful with Yūsuke Fujisaki (Akane's foster son). For example, she and Rumi Fujisaki teases Bossun if he had any gifts on Valentine's Day. She may not seem like a responsible mother, but she cares deeply for Bossun and Rumi.
Akane and Ryōsuke are close friends ever since high school and she is concerned about Ryōsuke's well being when he risks his life to save a boy named Taisuke Mishima.
Akane and Haru are close friends as demonstrated when Haru has complete faith in Akane at the hospital where she trusts Akane to take care of her children before she passes away.
Yūsuke is Akane's adopted son. After Bossun has run away and returned home, Akane slaps him and tells him that he is everything to her, which indicates that her bonds have strengthens with Bossun. Along with Rumi, Akane does tease Bossun about girls and his relationship with Sasuke Tsubaki.
Rumi is Akane's biological daughter and Rumi's personalities are quite similar to Akane. For example, Rumi asks Bossun to get her food while Akane does the same.
- The name Akane means "deep red, dye from the rubia plant" (茜).
- In the manga, Akane confesses to Yūsuke Fujisaki that she had a little crush on Ryōsuke Kirishima (Yūsuke's biological father), but she gave up on that because she knew that Haru Kirishima (Yūsuke's biological mother) loved Ryosuke the most. 
- To Bossun: "Maybe you didn't come out of me, but my best friend gave birth to you, my son."