Kaede Azusagawa is one of the main characters of the Seishun Buta Yarou wa Bunny Girl Senpai no Yume wo Minai series. She is the younger sister of Sakuta Azusagawa who suffered amnesia and gained a different personality after her ordeal with Adolescence Syndrome stemming from online bullying. Since then, she has lived with Sakuta and has not attended school.
Sometime during Kaede's time in middle school, she was a victim of online bullying and death threats. As a result of Adolescence Syndrome, this caused her to suffer various physical injuries and she was only able to recover after she stopped using social media and going to school.
Unfortunately, she had also developed amnesia as a way to separate herself from her experience with being harassed, which drove her mother and father to abandon her with Sakuta Azusagawa.
After her brother received advice from Shoko Makinohara, she was gifted a pen and notebook and she was suggested to write her first name in hiragana (かえで) instead of kanji (花楓). Kaede was declared the current "Kaede" and her former self was dubbed "Kaede-san" by Sakuta, which earned her tearful approval.
Since then, she lived and behaved differently before her ordeal with Adolescence Syndrome. As a result, she developed a phobia with strangers and spent most of her time at home.
On May 7, Kaede opened the door to her brother's room and found him shirtless in front of a girl she subsequently assumed to be a prostitute or scammer. After her misunderstanding was cleared up, the girl introduced herself as Mai Sakurajima, prompting Kaede to introduce herself in return. Kaede ran off immediately after, as her shyness got the best of her.
Inspired by Mai during her press conference, Kaede drafted a list of goals for the year. She presented the list to Sakuta on October 16, which included doing multiple activities with her brother but notably included going back to school.
On October 17, she announced to her brother that she would finally attempt to go outside, by latching on to his back and letting him escort her way there. On October 23, she latched on to Sakuta's back as they slowly made their way to their apartment balcony. Once she made it out, with tears of joy, Kaede wailed with all her might. Kaede was able to go to the elevator the next day and made it out of the entrance the day after; she even managed to eat at Mai's house and head to the park.
However, when she was spending time at the beach with her brother, Mai and Nodoka Toyohama, she was approached by her childhood friend Kotomi; upon meeting her, Kaede apologized and said she didn't know her.
Kaede and Sakuta talked with the school counselor at home on November 22, where they decided going to the nurse's office would still count as going to school. Kaede and Sakuta attempted to get to school the next day, but decided to take a break after Kaede was deterred by a pair of laughing students. In the elevator three days later, Kaede decided that taking a slow approach was not good enough and quickly ran outside. Upon being stopped by her brother and told not to overdo it, Kaede broke free, retorting that she had to. Unfortunately for her, Kaede found herself discouraged by passing students once more and began sobbing in frustration.
To cheer her up, she was taken to the zoo. They looked at giant and red pandas, before Sakuta gave her an annual pass so she could come back whenever she wanted. Seemingly walking home that night, Kaede was led to the school instead, much to her surprise. After observing her old classroom, Kaede announced every goal in her notebook could be circled and looked forward to heading to school tomorrow.
However, the following morning, Kaede woke up wondering why her legs looked cramped and why her room looked different. Upon being asked if she was "Kaede," she responded that she obviously was and cheekily questioned what he was talking about, indicating that she regained her old memories and lost her current ones.
Kaede was promptly brought to the hospital by Sakuta and their father, where they learned she had no recollection of the time when she had amnesia.
