Only one year behind her brother Tanjiro, Nezuko was 12-years-old when she was turned into a demon, which makes her physically remain a pre-teen, as demon do not age.
Due to her demon abilities, Nezuko can change her size/age and appear “mature” in a slightly older form or can even make herself look younger and smaller than a 12-year-old.
She was able to shrink herself into the physical size of a small child in order to fit inside a small box or a basket in order to hide from sunlight when traveling through during the daytime with Tanjiro and could enlarge herself into a much bigger form, in order to be able to battle against demons.
Nezuko shrinks to fit inside that wooden backpack or to evade demon slayer swords, and nothing else. So, Nezuko's size can change either way to reflect her emotional state and instinctual needs,. Her size-changing isn't merely a visual gag or a fun party trick.
Demon Slayer fans across the web are protesting the series' portrayal of Nezuko, who transforms from a cute young girl to a large-breasted woman. The Demon Slayer fanbase is in a heated debate over Nezuko's adult form - and whether it's appropriate.
Nezuko might be a terrifying demon, but she's also one of the cutest characters in anime. There is absolutely no doubt about the fact that Nezuko is the star of the Demon Slayer anime.
The most egregious example is Daki, though Nezuko also gets her moments of weirdly sexualized costume and plot choices. Daki is highly sexualized despite being biologically thirteen years old.
Nezuko and Bipolar Disorder Nezuko's caring personality changed after her family was slaughtered by the home invasion. Nezuko developed Bipolar Disorder due to the mental and physical stress that was put in her body.
The muzzle serves as a representation of Buddhist practices. First, it gags Nezuko, preventing her from speaking like a Buddhist monk's vow of silence, but it also is there to suppress her desire to eat humans. Through a Buddhist lens, Nezuko's muzzle is the symbol of a Buddhist monk.
It is theorized that Nezuko was able to conquer the Sun because she comes from a lineage of Sun Breathing users and because she kept a big part of her own humanity i.e. because she never ate human flesh.
In episode 6 of Demon Slayer season 2, Nezuko entered a berserk state to protect her brother Tanjiro, causing her body to develop into that of an adult. She loses her gag, grows a single horn and gains vine-like patterns across her body.
According to the creator of Demon Slayer, Koyoharu Gotouge, Nezuko's biological age is 12. This means that while she has been alive for 14 years, her body has only aged to the point of a 12-year-old. This detail about Nezuko's age is important because it highlights the tragedy of her situation.
Nezuko Kamado
Zenitsu also protects Nezuko multiple times when she is in danger, evident during Zenitsu's first meeting with Inosuke Hashibira and the battle against Enmu in the train. Eventually Zenitsu and Nezuko would marry and start a family as evidenced by their descendants.
Nezuko is the daughter of Tanjuro Kamado and Tanjiro's younger sister who is turned into a demon Despite Muzan Kibutsuji assumption that he has killed them all in his attempt to sire a sun-resistant demon, Nezuko survives as a demon with her mind mostly gone.
Two years pass between Seasons 1 and 2 of Demon Slayer, which means Nezuko is biologically 14 years old during the "Entertainment District" Arc. However, due to the time she spent sleeping in the wooden backpack, she is still mentally only 12.
When fighting the Upper Six demon Daki, sadly, Tanjiro found himself outmatched, but out from her box came Nezuko with a kick. She started going off against Daki and had her body severed several times. She then transformed, due to the fight, into her adult demon form and grew into … well, a busty demonic woman.
The now-iconic bamboo muzzle serves as a way of stopping Nezuko from using her teeth, and also keeps her from tasting human blood, which would cause her to lose control of herself.
The Wind Hashira is one of the strongest Hashiras in the Demon Slayer series. He played a significant role in defeating Kokushibo and was able to inflict damage on Muzan. Sanemi's sheer power and speed will be able to overwhelm Nezuko even in her final form.
Apart from Tanjiro, the show centers on his younger sister Nezuko Kamado, turned into a demon by Muzan Kibutsuji. Demons are incapable of walking out in broad daylight because the sunlight will burn them into the ashes. However, Nezuko has immunity against the sun, so she was given the name “The Chosen Demon”.
Demon Slayer: Analyzing the concluding chapters to ascertain Nezuko's love interest. Nezuko marries Zenitsu Agatsuma in the Demon Slayer series.
The particular color of her hair would also be reminiscent of her family's history as Children of Fire, explaining the burnt red tinge at the ends of her hair. This implies that Nezuko's hair color represents the demon blood within her; as the color takes over her hair, she may succumb to her demon side more often.
Eventually Zenitsu and Nezuko would marry and start a family as evidenced by their descendants.
Since she's the Love Hashira, it just makes sense for Mitsuri to be one of Demon Slayer's kindest and most compassionate characters. She always compliments the people around her, even if it's just mentally. She can also find everybody's best qualities.
He abused Zenitsu Agatsuma. He betrayed the Demon Slayer Corps, driving his master to suicide.
Demon Slayer's adorable icon Nezuko has stolen fans' hearts for five key reasons, earning her the title “Best Girl” of the series.