Kaede Kayano

Kaede Kayano is one of the main characters from the Assassination Classroom anime and manga.

Kaede is one of Nagisa's closest friends, and like him, she usually stands in the background and supports the others. She is the student who came up with Koro-sensei's name.

In the AWA fics, Kaede is a student at the AWA Academy.

Appearance
Kayano is a girl with a short stature. She has a small frame, hazel eyes, and light green hair which is always fashioned in unique, cat ear-styled pigtails. A running gag for her appearance is that she does not have noticeable breasts like the other female students in the class, giving her the nickname "forever flat".

In reality, her light green hair is dyed and is actually black, long, and wavy. When overwhelmed by the tentacles, her hazel eyes became red as a result of her blood lust. Once her tentacles were removed, she went back to her cat ear-styled pigtails and her eyes returned to hazel.

After seven years since graduating from middle school, she went back to her original hairstyle prior to joining Class 3-E. She also grows taller, being just shy of Nagisa's height. Additionally, her chest has slightly grown.

Personality
Kayano is one of the most cheerful, kind, and passive members of the class. She frequently acts as support in assassination attempts with her ability to assess the situation and adapt herself to them.

Despite her apparent passive nature, Kayano is an empathic and strong-willed person who can be extremely determined to the things that interest her or cares about, such as her love for sweets, and more tragically, her sister's fate. She also experiences a severe complex when it comes to her sex appeal, loudly voicing her discomfort when being around large breasted women.

Before confronting Korosensei, the passive and cheerful personality was in fact a facade to hide her true motives. Her only true attributes were her tenacity, adapting skill, and sex appeal complex, the rest being mere fabrications; her love for sweets may have resulted from the influence of the tentacles. However, after getting her tentacles removed, the happy personality she created became a true part of who she is.

Abilities
Perseverance: By far her greatest talent, as she was able to withstand the hellish pain from the tentacles, without any kind of treatment, for over a year. The average person wouldn't be able to function normally and would expire out of pure pain in three days without help. In spite of that, she keeps a completely normal front and is able to go through her entire school year without showing any kind of discomfort.

Assassination: Although hidden during most of the manga, Kayano clearly excels in the skills required for a talented assassin, being able to blend into the background very easily, keeping her true objectives and intentions hidden from friends and foes alike, regardless of their skill at discernment, and being able to strike without being noticed. Shiro states that, out of all of the Class E students, she is the most qualified one to be an assassin but Kayano herself states that Nagisa was the best assassin in the Classroom after she was defeated by him through a French kiss.

Acting: As a professional and prodigal actress, Kayano is renowned for her skill to play any type of role flawlessly, due to her remarkable adaption skills and empathy. Due to this, she was able to fool Class E's students and staff during the school year, and after the graduation, she started to professionally act again in her own way. All of them believed the fake identity she created. However, her acting abilities become unaffected or dulled to Karma, Nakamura and Nagisa after her failed assassination attempt on Korosensei at the field.

Intelligence: Kayano has a very high level of intelligence, as she was noted for being the first one to pass the Kunugigaoka transfer student exam on her first try, and even could implant the tentacle cells into herself in order to control them in a very short time. Unlike Itona, and despite not receiving any kind of treatment, her intellect isn't impaired in the slightest by the tentacles. Perhaps her true level of intelligence was first hinted at during her first attempt to kill Korosensei, devising a plan based on her love of pudding, and although the plan failed, the simplicity and how well thought out the plan was immensely impressed her classmates. In the environment of Class 3-E, Kayano has great logistical skills to support planning of assassinations.

Mobility: For most of the series Kayano was shown to be among the least physically capable of the girls, though this was due to the intensity of the tentacles secretly implanted in her body. Unlike Itona, the tentacles did give her the ability to move and strike extremely fast. Once the tentacles were removed and no longer subduing the accompanying pain, Kayano was able to focus and move quickly to different spots, thanks to the physical training she had done as an actress before she injected the tentacle seed into her, to the point that her speed allowed her to easily kept track of Okano's movements and match them despite having to keep this a secret for most of the year.

Trivia

 * Kayano was called "Forever 0" during Class 3-E training using code names. The one who wrote her code name was Muramatsu. Her name was also previously listed on "Korosensei's" list of the female students' cup sizes.
 * Before officially revealing her tentacles in Chapter 128, Kayano's tentacles make hidden appearances in earlier chapters.
 * Kayano is represented as a bunny, although only once.
 * In the "Girls you're interested in" ranking made by the boys, Kayano was ranked 4th, with style listed as her best point. The comment next to her vote tally says "Small; cheers you up".
 * In the popularity poll of Volume 12, Kayano was the lowest ranked of the main trio, at 9th place.
 * In the art rankings of Volume 5, Kayano was placed 3rd among the female students.
 * Her best subject is Japanese, while her worst is P.E. In Volume 15, her best subjects prior to joining E Class were Japanese, Social Studies, Science, and P.E. and her worst was Math.
 * Her dream is "to become a capable woman." Volume 15 shows that prior to joining Class E her dream was to be star actress or an office lady.
 * Her hobby is karaoke-scoring.
 * Her favorite food is pudding, and as shown she has extensive knowledge on it.
 * When the tentacles asked her what she wanted, Kayano answered, "To be a killer."
 * Her inability to swim, her fixation on breasts, and her love of sweets, are traits she shares with Korosensei and to a lesser extent, Itona, though she had her breast fixation even before the implantation. Her strong will, almost bordering on obsession, and drive once she decides to do something, however, is another key trait they share.
 * She dislikes people that have a large bust, except Tōka Yada, her sister Aguri Yukimura, and later Irina Jelavić.
 * Despite being good at acting of falling in love with someone, Kayano didn't have any experience in falling in love in real life until she met Nagisa.
 * Kayano is the one who gave Koro-sensei his current name, which he has used ever since.
 * During the Civil War, Kayano was eliminated by Kimura from behind before she could shoot Hinata Okano.
 * Nagisa came to the conclusion that her pudding plan was just a dummy attempt to further avoid arousing suspicion of Kayano not actively participating in the class's numerous attempts.
 * While Nagisa is the main narrator of the series, Kayano acts as the narrator in Chapter 179.