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Zack Witherfield is a multi-fandom OC made by Kamiko


Zack has dirty-blonde wild-ish hair that go up to his chin. He has his bangs parted to his right side almost covering his right eye. He wears cosmetic contact lenses that make his eyes look like red cat eyes. He has eye bags under his eyes due to lack of sleep, thanks to his insomnia. He wears the default uniform with the jacket unbuttoned unless changed by the player. He wears a art beret showing that he is in the art club.


Zack looks the same except he will wear the 3rd year male uniform.


Zack is a reserved person. He doesn't seem to take interest nor care for others unless he's close to them. He will definitely show no care to people he dislikes, and will even show some satisfaction if something bad happens to them. He's will speak to others if needed, but will only keep an emotionless expression most of the time. He tends to wait for the last minute to do something, making him a procrastinator. He doesn't trust anyone with personal things except if they're his friend. It's actually not too hard to befriend him however, he usually is willing to trust people if he knows them pretty well and if they're a least, a bit nice, and if they're not a bully nor a backstabber. He will definitely refuse to befriend someone if they had a bad relationship with them before, which also shows he's a bit stubborn also. He's usually seen sitting on a bench chatting with his friends, drawing, or just trying to take a nap. Zack is pretty calm if nothing extreme happens, however he may get a little nervous and awkward if he's around his crush. Despite that he's kind of lazy he's pretty strong. The reason is, because he practices fighting when he's at home is because when he was younger, he lost his parents to a burglar, making him swore to his heart that he'll never let anyone mess with his sister and his friends. This, sadly, is one of the contributors to his insomnia, as he constantly worries that something bad will happen to them. If a friend or if his sister dies, Zack will become depressed, making his condition wose. If Zack finds out that he failed his promise to himself(meaning that his sister and all of his friends are dead) Zack will attempt to kill himself out of guilt.

Dere Stats

On a scale of 0-10. 0 being never and 10 being definitely.

Tsundere: 1 , Zack may deny he has a crush on somebody if you ask him and if you're not friends with him. But, he will never yell, or be rude to his crush just to hide the fact that he likes them!

Kuudere: 5, Zack doesn't care for anyone that's not close to him. But he's not completely emotionless, as he's more open towards his friends.

Yandere: 8 Zack doesn't have all the traits of a yandere but he does have some. He will not give up his crush to someone else very easily and will go as far to hurt them if they try to woo Odessa when the person already knows about Zack's crush on Odessa. If they flirt with Odessa but is unaware of Zack's crush on them, he will instead give the person a warning. As mentioned in his personality, he will attempt to kill anyone that has murdered anyone that he cares for.

Deredere: 5, He does flirt and shows more of a charming side when he's not feeling shy around Odessa. He's also very caring when he's with his friends.

Dandere: 1, He may be a little shy towards his crush but that's kind of the only dandere trait he has. He shows, or at least tries, to be emotionless towards other people, not because he's shy, but because he doesn't care about them. Making him more of a kuudere then a dandere.


Chiyo Casella has stolen his sketchbook on an attempt to get him to be more active. Zack's sketchbook is one of his most prized possessions and he can't seem to find where she put it.

Okay, so Chiyo, you know blue hair, pink streak, wears goggles, and like angry everyday. She stole my sketchbook and I can't get it back, can you help me find it please?
— If player asks Zack for his task
*sigh* Okay then...
— If player rejects his task
Thank you, be sure to let me know if you find it.
— If player accepts his task
Yeah, that's it, thanks.
— If you complete his task

Zack's sketchbook is located inside of Chiyo's locker in the shower room. To get inside the player must figure out her locker's code. To do this the player must stalk Chiyo as she will whisper to herself her locker's code when she opens her locker.

If you complete his task he will be willing to distract other students for you and he wont mention you to his friends if you kill an acquaintance of his. If the player is seen as a nice student to at least 3 of his friends and if you complete his task he will be willing to be friends with you, which unlocks all the favors for him to do for the player.

If the player is friends with Zack, and all of his other friends are dead he will just be depressed and will follow the player around almost all the time so he can make sure that they stay safe. This is both a advantage and a disadvantage.

Advantage- He will try to stop anybody who tries to attack the player.

Disadvantage- Because Zack is following you, It's very easy for him to see you commit homicide. If he does see the player murder someone, he will become suspicious of the player. If he sees you kill at least 4 students, he'll assume that you killed his friends and he will stop being friends with you and will try to kill you.

Reaction to Suspicious Actions

I think this person is dangerous, you should avoid them.
-When Zack gossips about you

(His friends and his sister will trust him more if your reputation is below neutral, meaning that they'll refuse to talk to you(unless you befriend them))

Bloody Clothing- Zack will question you(High Atmosphere) Gossip about you to his cared ones meaning that they will avoid you.(Med-Low atmosphere)

Suspicious Weapons- Underthink it and ignore you(High) Gossip about you to loved ones.(Med-Low)

Evil Laughing- Giggle with you in confusion(High-Med) Gossip about you.(Low)

Medium or Low Sanity- Zack will gossip about you to his loved ones.

Blood on Ground- Zack will just think it's ketchup and ignore it(High-Med) Convince loved ones to leave(Low)

Panty Shots- Zack would giggle and blush a bit unless you try to take a panty shot of his sister(His face would turn red and he will gossip about you, however your reputation wont be damaged that much).

H-hey! Quit it!
-If Zack sees you take a panty shot  of Brittney Witherfield

Reaction to Murder

Zack has the Faithful persona. His strength is Very Strong.

Acquaintances- Pretend not to react and tell his friends to leave school with him. If you do a task for him him he will not tell his friends that you're a murderer but will still try to convince them to leave. If you befriend him he wont tell his friends at all.

Friends, Sister, or/and Crush- Regardless if you befriend him or not he will attempt to kill you. If all of his loved ones are dead he will try to kill you, if he succeeds he will then end his own life.

Enemies- Would show a little bit of satisfaction however he would still convince his friends to leave but wont tell his friends that you're the murderer. If you befriend him he wont tell his friends at all.


  1. Enter School and change shoes
  2. Chat with his best friends
  3. Head to class 3-2 and stay there until Lunch
  4. Chat with best friends
  5. Head to class 3-2 and stay there until school is over
  6. Heads to the Art Club
  7. Participates in club activity
  8. Changes shoes
  9. Go home


Steven Lefèvre-

He is friends with him. He's unaware of Steve's random small and short crushes on him.

Chiyo Casella

They argue a lot about little things, mostly about Zack refusing to engage in physical activities. They are friends...kind of..

He hates the fact that she bugs him to "actually do something productive" besides just sitting down and drawing. It actually got up to the point where she took his sketchbook away, making him very upset.

Odessa Casella

Friends, classmate, and his crush. Zack because tense a lot when he's around them making him stutter if he talks to them. He gazes at them during class a lot, not necessarily paying attention to the lesson. He sometimes plays video games with them, however Zack loses to them most of the time. He gets very possessive if someone tries to seduce them, and will confront the person as he will not give them up that easily!

Brittney Witherfield- His younger sister, he is very protective of her as she is his only family member that's still alive. He isn't too happy about her annoying other people, especially people that get angered easily. Both agreed to continue living together when they're done with school. Zack will obviously try to kill you if you kill her. If she's dead Zack will become very depressed.

A upcoming male OC-

They knew eachother ever since middle school. Zack disliked him but his hatred for him grew worse due to an incident that involved both of them 2 years ago. Zack tries to avoid him and he will ignore him whenever the guy tries to talk to him. Zack worries that he might be after Odessa's affection too.

100 Questions


  • Zack isn't aware that he has insomnia, but he's curious why he's always tired.
  • According to Google translate his name is "Zakku~izāfīrudo"
  • Zack doesn't know how to swim, making this an advantage if the player is near the swimming pool while fighting him.
  • Zack is very ticklish which may be another advantage to the player if he's defending himself or attacking the player.
  • Zack has a habit of biting his right thumb whenever he's bored. Sometimes he may even bite it so hard that he may accidentally cut himself, so he might be seen wearing a band aid on his right thumb sometimes.
  • He has the least and minor appearance changes.
  • He used to be a faculty member before he was changed to be a student.
  • They're some rumors that he and Brittney are demons because of their unusual red cat-like eyes. This is false as they both use contact lenses in the Yandere Simulator universe. This is also a reference to Kamiko's planned comic series, Weirdos Crew, as they are demons.
  • He and his sister are adopted.


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