If students see Yandere-chan carrying a suspicious weapon, they will damage her reputation by 10 points. You can apologize to gain back 50% of your lost reputation.
If Senpai sees Yandere-chan with a suspicious weapon, she will drop it instantly, and the player will get game over.
If a teacher sees Yandere-chan with a suspicious weapon, Yandere-chan will be expelled, resulting in a game over.
If the teacher sees Yandere-chan holding a suspicious weapon after a student has been murdered, she will assume that Yandere-chan killed the student and will try to apprehend her.
The following listed weapons appear in the game and are canon.
Small Weapons[]
These weapons can be put into the player's inventory. The player can fight back with these weapons.
Name
Knife
Reputation Loss
10
Location
On the counter in the Cooking Club
Additional info
None
Name
Scissors
Reputation Loss
0
Location
On the table in the Sewing Room
Additional info
Are not considered suspicious
Name
Box Cutter
Reputation Loss
0
Location
On the boxes in the Art Club
Additional info
Is not considered suspicious
Name
Screwdriver
Reputation Loss
0
Location
On the table in the Science Club
Additional info
Is not considered suspicious
Required to eliminate Kokona during her bathroom event
Name
Syringe
Reputation Loss
10
Location
On the desk in the Infirmary
Additional info
Required to kidnap students
Name
Occult Ritual Knife
Reputation Loss
10
Location
In the skull in the Occult Club
Additional info
Required to get into the Demon Realm
Large Weapons[]
These weapons can not be put into the player's inventory. The player can not fight back with these weapons.
Large Bladed Weapons[]
These weapons use animations for large, bladed weapons.
Name
Katana
Reputation Loss
10
Location
In the display case in Headmaster's Office
Additional info
A key is required to open the display case
Large Blunt Weapons[]
These weapons use animations for large, blunt weapons.
Name
Baseball Bat
Reputation Loss
10
(0 if the player is in the Sports Club)
Location
Near the Gym
Additional info
Is not considered suspicious if the player is in the Sports Club
Name
Dumbbell
Reputation Loss
10
(0 if the player is in the Sports Club)
Location
Near the running track
Additional info
Is not considered suspicious if the player is in the Sports Club
Five dumbbells are required to eliminate a rival by dropping a bucket on her
A single dumbbell can be used as a weapon with animations similar to the knife
Name
Shovel
Reputation Loss
10
(0 if the player is in the Gardening Club)
Location
Near the Gardening Club's shed
Additional info
Is not considered suspicious if the player is in the Gardening Club
Name
Axe
Reputation Loss
10
Location
Near the Gardening Club's shed
Additional info
None
Name
Magical Girl Wand
Reputation Loss
10
Location
In the north-west corner of the Drama Club
Additional info
Releases hearts and makes a sound when used to kill someone
Other Weapons[]
These weapons posses unique properties that no other weapon has and can not be put into the player's inventory.
Name
Circular Saw
Reputation Loss
10
Location
On the shelf in the Gardening Club's shed
Additional info
Required for dismembering corpses
Name
Energy Sword
Reputation Loss
10
Location
In front of the school gates
Additional info
Can only be accessed trough Cyborg Mode
Dismembers students instantly
Fanon Weapons[]
The following listed weapons are made by fans and are non-canon.
Umbrellas[]
The umbrellas are fan made weapons. There are 3 umbrellas sitting in a vase at the school's entrance, and a fourth in class 1-1. One is pink and white-dotted which is Osana Najimi's, One is blue which is Amashi Nijiro's, One is green which belongs to Midori Gurin, and a fourth pink and purple umbrella belongs to Koneko Hayamizu, which can be found in class 1-1.
Yandere-chan can take one at anytime, However, if there are other students around and they notice Yandere-chan taking an umbrella,They will take actions depending on their personality. Students with the justice minded persona will tell a teacher. Students with the social butterfly persona will tell the owner of the umbrella. Brave will stop you and place the umbrella in the vase. Coward will unfriend you (if you are friends) and will make your reputation decrease because of that. If the owner of the umbrella sees you taking it they may tell a teacher or confront you, depending on their personality.
All of the umbrellas have a sharp point which can be used to stab a student with.
Sewing needle[]
The sewing needle is a fan made weapon. It's just a sewing needle. It can be found in a sewing kit in the nurse's office, the Cosplay Club, or the Sewing Club. For the Sewing Club however, you would have to sneak it out due to club rules.
It can be put in your rival's food when she is not watching, or By befriending her, then cooking a bento for her or buying one from the town and sneaking the needle in. She may eventually accept and eat it and swallow the needle, which will tear up her insides.
Chainsaw[]
The chainsaw is a fan made weapon and the most powerful weapon, it can kill teachers and heroic students regardless of their strength, but as a penalty it takes quite a lot of work to take it to school. It is found at night on the outer reaches of town in a toolshed near the forest. Yandere-chan can take it home and she will rename is to Saki-chan. there are two methods of taking the weapon to school, one is to sneak it in during the night, in which you have to avoid night guards. The other way is to study mechanics which allows you to tear apart the chainsaw, take the components with you, and then rebuild it wherever you want.
Doors[]
Doors can be used to repeatedly slam against the head of a victim. You can use the doors for any room, but you have to be quick in order to kill the student, there also will be no blood.
Crowbar[]
The crowbar is a fanon weapon, added by Chalkpai. The only way to get the crowbar is to sneak around the delinquents and wait until they leave to class, after this, you can take Purple Streak's crowbar. The crowbar uses the same animations as a baseball bat. You also have an extra option, that allows you to put a student in a coma. There is another way to get the crowbar, but is harder, you need to pickpocket janitor's keys and unlock the third floor storage room, here, you will find a toolbox, inside the toolbox, are another keys, with these keys you can unlock the outside storage room, in this storage room you will find the crowbar. The crowbar cannot be given to a mind slave.
Magnet[]
The magnet is a fanon weapon, added by CureLove1234. You can get the magnets from your fridge at home.