Anko Koshi is the younger sister of Torako Koshi in "My Deer Friend Nokotan." She has a strong obsession with her sister and often acts in extreme ways to protect their bond. Anko joins the Deer Club in high school to stay close to Torako and is willing to go against others for her sake. Even though she can be intense, Anko also shows a calm and smart side when her sister is not involved. She is good with weapons, crafty with technology, and sometimes scares others with her yandere behavior.
Anko Koshi has long, reddish-purple hair that flicks outward at the ends.
She usually wears her sister's old school uniform after entering high school.
She has similar eyes and hair style to her sister, showing they are family.
Her height is 155 cm.
Anko is extremely attached to her older sister Torako.
She only listens to Torako and ignores orders from other club members.
She can become menacing and violent towards anyone she thinks will get between her and her sister.
Despite this, when not dealing with her sister, Anko is calm, cool, and polite.
She speaks with elegant language and seems mature, but her love for her sister can turn into a dangerous obsession.
She wants to be with her sister all the time and make sure Torako can’t live without her.
When angry or yandere, her voice becomes deep and scary, and her eyes glow red-black.
Anko is two years younger than Torako Koshi and was first introduced as a middle school student.
After entering Hinominami High School, she joins the Deer Club as her sister's "official helper and personal deer."
She is sometimes called "Koshian," a nickname used by Noko Shikanoko.
There is a setting that says her age is 27, but in the main story, she is two years younger than Torako.
Anko always carries kunai and is very skilled at throwing them quickly and accurately.
She is good at setting up traps, builds things by herself, and once made a special observation room with an AI under the Deer Club room.
Her cooking is also praised—she often makes delicious rice balls and lunches for Torako.
She is deeply in love with her sister, Torako Koshi, and does everything to stay close to her.
Anko does not care much about Noko Shikanoko or Meme Bashame, but she knows about deer culture and club activities very well.
She considers everyone trying to come between her and her sister as an enemy.
She and Noko become rivals, but later make up after a big fight.
Intense Obsession
Anko joins the Deer Club only to look after her sister Torako.
She ignores other members’ commands and is hostile to anyone she sees as a threat.
She sometimes threatens or uses violence to chase away “enemies.”
Rivalry with Noko
Anko strongly dislikes Noko Shikanoko.
Not knowing Torako had changed the room, Anko burns down the Deer Club room.
Later, Anko challenges Noko in a quiz battle called the “Torako Koshi King Contest,”
asking questions that reveal Torako’s secrets.
The Kunai Accident and Reconciliation
When Anko loses the quiz and gets upset, she throws many kunai.
One kunai seems to hit Noko, but instead sticks into the deer cookie Noko is holding, avoiding harm.
After this, Noko and Anko make peace with each other.
Serious Club Member
Even though she acts like she doesn’t care about other members,
Anko knows a lot about deer and is a serious member of the club.
In the original manga, Anko’s eyes are often shown without highlights, making her look scarier during intense scenes.
In the anime, her eyes usually have highlights, but they disappear during her psycho moments.
Her hair color is different from Torako’s, but their hairstyles and eyes are similar, showing their close bond as sisters.
"This world doesn’t need anyone except me and my sister!"
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