Kokona Haruka

'''Kokona Haruka is one of the female students and the current "test rival" that currently attends Akademi High School. YandereDev has considered her becoming the third rival of the game. '''

Appearance
Kokona Haruka wears the default female school uniform, unless customized by the player.

Before the February 8th, 2016 Build, she had purple colored hair worn in two drill pigtails. Her eyes were purple as well.

As of the February 8th, 2016 Build, she has light purple spiky bangs which sweep to the the right of her face and very curly drill pigtails. Her hairstyle is final. She has dark purple eyes, fair skin and the largest bust size in the game, set at 2.

Personality
Among the personas currently implemented in the game, she is a Social Butterfly. She will happily pose for a picture if the player has their camera out. If she sees a corpse or witnesses a murder, she will run to the nearest crowd and call the police. She cannot participate in physical fights against murderers.

According to her Student Profile, Kokona may be participating in compensated dating (also known as Enjo kōsai) and may be a victim of domestic abuse. She seems powerless in both situations and can do almost nothing. She enjoys neither and has even changed a bit because of her father, as noted by Saki. However, her behavior has not been changed yet in the game, possibly because it's still just a debug build.

If Kokona becomes an official rival, in the final game, she will be less "likable".

Routine
At 7:04 AM, Kokona enters the school grounds, seventh in line on the left side, if facing the school gates. She walks to her locker at 7:06 AM. At 7:15 AM, she walks into the plaza, to the left side of the fountain, and gossips with Yui Rio, Yuna Hina, Koharu Hinata, Mei Mio and Saki Miyu. On Monday, at 7:30 AM, Kokona receives a call from a mysterious stranger and runs to the doorway in front of the lockers furthest to the right when facing the school. On Thursday, also at 7:30 AM, Kokona goes to the girls' bathroom on the first floor.

At 8:00 AM, Kokona walks into Classroom 3-2 and sits at her desk. She starts her morning classes at 8:30 AM, and leaves the classroom at 1:00 PM. On Monday, she goes to the rooftop to talk with Saki about domestic abuse. On Wednesday, Kokona stays in the classroom until 1:03, when she walks down to the plaza with her lunch. Once she arrives at 1:07, she places her lunch down on a bench and goes to hide behind a tree to admire Senpai. On all other days, she goes to the cafeteria to gossip.

Kokona walks to class again at 1:30 PM and finishes her afternoon classes at 3:30 PM. She then heads to the Cooking Club and stays there until 5:30 PM. On Monday, she makes octopus-shaped hot dogs using the knife and shares them with the other members. On all other days, she sits at the table like the other members. Afterwards, she heads to her locker and lingers there until 5:45 PM, then she walks home.

Background
When Kokona was younger she was a normal cute baby with the potential to become anything she wanted to, just like any other.

It has been said between a conversation between her and Saki Miyu on a rooftop that she has been abused by her drunk father after her mother's death.

Kokona Haruka is also involved in compensated dating with a person who she has seen at least once in Shisuta Town. He might have threatened her into meeting him again, or may have offered her a large sum of money to meet him.

If Kokona's dark secret is requested from Info-chan through panty shot favours, Yandere-chan will receive video footage of Kokona selling used panties to use as blackmail. Currently, no other mention is made of this within the game.

Saki Miyu

 * Main Article: Saki Miyu

Kokona is seemingly good friends with her and even tells Saki that she is being domestically abused by her father. Saki wishes nothing but the best for Kokona and wants to help her out, but Kokona refused to say more about the topic. According to Saki's Student Profile, Kokona is willing to tell Saki about personal matters, but not too much.

However, if Saki learns about Kokona's compensated dating, she will be distraught and won't do anything to help Kokona out. In the full game, Saki might have comforting animations for Kokona, but will avoid her if it really gets too bad.

If Kokona becomes a rival, Saki will become her subordinate.

Saki Miyu will not be Kokona's Senpai, as they are just friends.

Senpai

 * Main Article: Senpai

Since she is a test rival, she has a crush on him. She might eventually be a real rival so this crush may become permanent. Kokona calls him "Senpai", even though they're in the same class. She might also be moved to either Class 2-1 or Class 2-2 so that she can still call her crush "Senpai". Currently, the only event that shows her feelings is her Wednesday speech, where she hides behind the tree and speaks while staring at Senpai. This event can be used as an advantage to poison Kokona's bento.

Suitor

 * Main Article: Suitors

When the November 15th, 2015 Build came out, YandereDev stated that Kokona's second crush is one of the students who already attends school. In the future, Yandere-chan can matchmake Kokona with her suitor.

Trivia

 * Some people find that her appearance similar to the UTAULOID Kasane Teto. People link Kokona with Teto because she seems to be friends with Saki Miyu, whose appearance is commonly thought to be based on the VOCALOID Hatsune Miku. Both VOCALOID and UTAU are Voice synthesizers. YandereDev, however, did not intentionally make Kokona look like Teto. It was pure coincidence.
 * Her name is a reference to the most popular female Japanese names in 2012, 11th most popular being Kokona, 12th most popular being Haruka.
 * Kokona will be the only exception to rivals being given meaningful names, if she becomes an official one.
 * YandereDev uses her character to test the new elimination methods every new update, as he has shown in his tutorial videos. When asked about the reason for this, he stated that somebody had to be the guinea pig and she was simply unfortunate enough to be the one picked.
 * In older versions of the game, Kokona Haruka's name was Nodoka Manabe and for the builds shortly after, Nodo Mana. The placeholder name was inspired by K-On!.
 * YandereDev is not sure where Kokona lives at the moment.
 * YandereDev nicknames Kokona as "Everyone's favorite punching bag", referring to how she can be killed in more ways than any other student. The main reason why it is so easy to kill her is because YandereDev needs to test killing methods quickly for the sake of debugging the game.
 * Kokona succeeds Victim-chan as the test rival.
 * Her male counterpart is Riku Soma.
 * In the September 18th, 2015 Build, her crush was set to "None" by mistake.