diff --git a/Java-Knight/src/main/java/org/project/entity/Entity.java b/Java-Knight/src/main/java/org/project/entity/Entity.java
index 2a060f9..8225555 100644
--- a/Java-Knight/src/main/java/org/project/entity/Entity.java
+++ b/Java-Knight/src/main/java/org/project/entity/Entity.java
@@ -1,6 +1,30 @@
 package org.project.entity;
 
-public interface Entity {
+import org.project.item.Accessory.Custom;
+import org.project.item.Accessory.Shield;
+import org.project.item.Accessory.Weapon;
+import org.project.item.Item;
+
+import java.util.ArrayList;
+
+public abstract class Entity {
+
+    public int MaxHealth;
+    public long Money;
+    private int BaseDamage;
+    public Weapon Weapon;
+    public Shield Shield;
+    public Costume Costume;
+    public ArrayList<Item> Inventory;
+
+    public int getBaseDamage() {
+        return BaseDamage;
+    }
+
+    public void setBaseDamage(int baseDamage) {
+        BaseDamage = baseDamage;
+    }
+
     void attack(Entity target);
 
     void defend();
@@ -15,6 +39,10 @@ public interface Entity {
 
     int getMaxMP();
 
+    public void She() {
+
+    }
+
     /*
     TODO: ADD OTHER REQUIRED AND BONUS METHODS
     */
diff --git a/Java-Knight/src/main/java/org/project/item/Accessory/Accessory.java b/Java-Knight/src/main/java/org/project/item/Accessory/Accessory.java
new file mode 100644
index 0000000..9bea6e3
--- /dev/null
+++ b/Java-Knight/src/main/java/org/project/item/Accessory/Accessory.java
@@ -0,0 +1,57 @@
+package org.project.item.Accessory;
+
+import org.project.Interface.IAttachable;
+import org.project.Interface.IDamageable;
+import org.project.constants.gameConstant.AttackPowerUp;
+import org.project.entity.Entity;
+import org.project.item.SellableItem;
+
+public abstract class Accessory extends SellableItem implements IDamageable, IAttachable {
+    private int Health;
+    private final int MaxHealth;
+
+    public Accessory (String name, Entity owner, int price, int health, int maxHealth) {
+        super(name, owner, price);
+        this.Health = health;
+        this.MaxHealth = maxHealth;
+    }
+
+    public int GetHealth() {
+        return Health;
+    }
+
+    public int GetMaxHealth() { return MaxHealth; }
+
+    @Override
+    public int GetPrice() {
+        int basePrice = super.GetPrice();
+
+        return basePrice * (Health/MaxHealth);
+    }
+
+    @Override
+    public void TakeDamage(int amount, AttackPowerUp[] powerUps) {
+        Health -= amount;
+
+        if (IsDestroyed()) {
+            HandleZeroHealth();
+        }
+    }
+
+    @Override
+    public boolean IsDestroyed() {
+        return Health < 0;
+    }
+
+    @Override
+    public void HandleZeroHealth() {
+        this.DeattachFrom(this.Owner);
+        this.Owner.Inventory.remove(this);
+    }
+
+    @Override
+    public abstract void AttachTo(Entity entity);
+
+    @Override
+    public abstract void DeattachFrom(Entity entity);
+}
diff --git a/Java-Knight/src/main/java/org/project/item/Accessory/Costume.java b/Java-Knight/src/main/java/org/project/item/Accessory/Costume.java
new file mode 100644
index 0000000..00e4d16
--- /dev/null
+++ b/Java-Knight/src/main/java/org/project/item/Accessory/Costume.java
@@ -0,0 +1,48 @@
+package org.project.item.Accessory;
+
+import org.project.Interface.IDefender;
+import org.project.constants.gameConstant.AttackPowerUp;
+import org.project.entity.Entity;
+
+import java.util.Arrays;
+
+public class Costume extends Accessory implements IDefender {
+    private final int Defense;
+
+    public Costume(String name, Entity owner, int price, int health, int maxHealth, int defense) {
+        super(name, owner, price, health, maxHealth);
+        this.Defense = defense;
+    }
+
+    @Override
+    public int GetDefense() {
+        return Defense;
+    }
+
+    @Override
+    public int Apply(int damage, AttackPowerUp[] powerUps) {
+        if (Arrays.binarySearch(powerUps, AttackPowerUp.ANTI_CUSTOM) < 0) {
+            return damage;
+        }
+
+        if (damage <= Defense) {
+            this.TakeDamage(damage, null);
+            return 0;
+        }
+
+        this.TakeDamage(Defense, null);
+        return damage - Defense;
+    }
+
+    @Override
+    public void AttachTo(Entity entity) {
+        entity.Inventory.remove(this);
+        entity.Costume = this;
+    }
+
+    @Override
+    public void DeattachFrom(Entity entity) {
+        entity.Costume = null;
+        entity.Inventory.add(this);
+    }
+}
diff --git a/Java-Knight/src/main/java/org/project/item/Accessory/Shield.java b/Java-Knight/src/main/java/org/project/item/Accessory/Shield.java
new file mode 100644
index 0000000..e114242
--- /dev/null
+++ b/Java-Knight/src/main/java/org/project/item/Accessory/Shield.java
@@ -0,0 +1,48 @@
+package org.project.item.Accessory;
+
+import org.project.Interface.IDefender;
+import org.project.constants.gameConstant.AttackPowerUp;
+import org.project.entity.Entity;
+
+import java.util.Arrays;
+
+public class Shield extends Accessory implements IDefender {
+    private final int Defense;
+
+    public Shield (String name, Entity owner, int price, int health, int maxHealth, int defense) {
+        super(name, owner, price, health, maxHealth);
+        this.Defense = defense;
+    }
+
+    @Override
+    public int GetDefense() {
+        return Defense;
+    }
+
+    @Override
+    public int Apply(int damage, AttackPowerUp[] powerUps) {
+        if (Arrays.binarySearch(powerUps, AttackPowerUp.ANTI_SHIELD) < 0) {
+            return damage;
+        }
+
+        if (damage <= Defense) {
+            this.TakeDamage(damage, null);
+            return 0;
+        }
+
+        this.TakeDamage(Defense, null);
+        return damage - Defense;
+    }
+
+    @Override
+    public void AttachTo(Entity entity) {
+        entity.Inventory.remove(this);
+        entity.Shield = this;
+    }
+
+    @Override
+    public void DeattachFrom(Entity entity) {
+        entity.Shield = null;
+        entity.Inventory.add(this);
+    }
+}
diff --git a/Java-Knight/src/main/java/org/project/item/Accessory/Weapon.java b/Java-Knight/src/main/java/org/project/item/Accessory/Weapon.java
new file mode 100644
index 0000000..f27c527
--- /dev/null
+++ b/Java-Knight/src/main/java/org/project/item/Accessory/Weapon.java
@@ -0,0 +1,28 @@
+package org.project.item.Accessory;
+
+import org.project.entity.Entity;
+
+public class Weapon extends Accessory {
+    private final int Damage;
+
+    public Weapon (String name, Entity owner, int price, int health, int maxHealth, int damage) {
+        super(name, owner, price, health, maxHealth);
+        this.Damage = damage;
+    }
+
+    public int GetDamage() {
+        return Damage;
+    }
+
+    @Override
+    public void AttachTo(Entity entity) {
+        entity.Inventory.remove(this);
+        entity.Weapon = this;
+    }
+
+    @Override
+    public void DeattachFrom(Entity entity) {
+        entity.Weapon = null;
+        entity.Inventory.add(this);
+    }
+}
diff --git a/Java-Knight/src/main/java/org/project/item/Item.java b/Java-Knight/src/main/java/org/project/item/Item.java
index 6d6b5ad..4bd3854 100644
--- a/Java-Knight/src/main/java/org/project/item/Item.java
+++ b/Java-Knight/src/main/java/org/project/item/Item.java
@@ -2,10 +2,16 @@ package org.project.item;
 
 import org.project.entity.Entity;
 
-public interface Item {
-    void use(Entity target);
+public abstract class Item {
+    private final String Name;
+    public Entity Owner;
 
-    /*
-    TODO: ADD OTHER REQUIRED AND BONUS METHODS
-    */
+    public Item (String name, Entity owner) {
+        this.Name = name;
+        this.Owner = owner;
+    }
+
+    public String getName() {
+        return Name;
+    }
 }
diff --git a/Java-Knight/src/main/java/org/project/item/KeyItem.java b/Java-Knight/src/main/java/org/project/item/KeyItem.java
new file mode 100644
index 0000000..6064152
--- /dev/null
+++ b/Java-Knight/src/main/java/org/project/item/KeyItem.java
@@ -0,0 +1,9 @@
+package org.project.item;
+
+import org.project.entity.Entity;
+
+public class KeyItem extends Item {
+    public KeyItem (String name, Entity owner) {
+        super(name, owner);
+    }
+}
diff --git a/Java-Knight/src/main/java/org/project/item/SellableItem.java b/Java-Knight/src/main/java/org/project/item/SellableItem.java
new file mode 100644
index 0000000..fd4f380
--- /dev/null
+++ b/Java-Knight/src/main/java/org/project/item/SellableItem.java
@@ -0,0 +1,16 @@
+package org.project.item;
+
+import org.project.entity.Entity;
+
+public class SellableItem extends Item{
+    private final int Price;
+
+    public SellableItem (String name, Entity owner, int price) {
+        super(name, owner);
+        this.Price = price;
+    }
+
+    public int GetPrice() {
+        return Price;
+    }
+}
diff --git a/Java-Knight/src/main/java/org/project/item/armors/Armor.java b/Java-Knight/src/main/java/org/project/item/armors/Armor.java
deleted file mode 100644
index 7ca8774..0000000
--- a/Java-Knight/src/main/java/org/project/item/armors/Armor.java
+++ /dev/null
@@ -1,42 +0,0 @@
-package org.project.item.armors;
-
-// TODO: UPDATE IMPLEMENTATION
-public abstract class Armor {
-    private int defense;
-    private int maxDefense;
-    private int durability;
-    private int maxDurability;
-
-    private boolean isBroke;
-
-    public Armor(int defense, int durability) {
-        this.defense = defense;
-        this.durability = durability;
-    }
-
-    public void checkBreak() {
-        if (durability <= 0) {
-            isBroke = true;
-            defense = 0;
-        }
-    }
-
-    // TODO: (BONUS) UPDATE THE REPAIR METHOD
-    public void repair() {
-        isBroke = false;
-        defense = maxDefense;
-        durability = maxDurability;
-    }
-
-    public int getDefense() {
-        return defense;
-    }
-
-    public int getDurability() {
-        return durability;
-    }
-
-    public boolean isBroke() {
-        return isBroke;
-    }
-}
diff --git a/Java-Knight/src/main/java/org/project/item/armors/KnightArmor.java b/Java-Knight/src/main/java/org/project/item/armors/KnightArmor.java
deleted file mode 100644
index eb59a46..0000000
--- a/Java-Knight/src/main/java/org/project/item/armors/KnightArmor.java
+++ /dev/null
@@ -1,6 +0,0 @@
-package org.project.item.armors;
-
-// TODO: UPDATE IMPLEMENTATION
-public class KnightArmor {
-    // TODO: DESIGN ARMOR'S ATTRIBUTES IMPLEMENT THE CONSTRUCTOR
-}
\ No newline at end of file
diff --git a/Java-Knight/src/main/java/org/project/item/consumables/Consumable.java b/Java-Knight/src/main/java/org/project/item/consumables/Consumable.java
deleted file mode 100644
index 028e13d..0000000
--- a/Java-Knight/src/main/java/org/project/item/consumables/Consumable.java
+++ /dev/null
@@ -1,8 +0,0 @@
-package org.project.item.consumables;
-
-// TODO: UPDATE IMPLEMENTATION
-public abstract class Consumable {
-    /*
-    TODO: ADD OTHER REQUIRED AND BONUS METHODS
-    */
-}
diff --git a/Java-Knight/src/main/java/org/project/item/consumables/Flask.java b/Java-Knight/src/main/java/org/project/item/consumables/Flask.java
deleted file mode 100644
index c0e7a6d..0000000
--- a/Java-Knight/src/main/java/org/project/item/consumables/Flask.java
+++ /dev/null
@@ -1,16 +0,0 @@
-package org.project.item.consumables;
-
-import org.project.entity.Entity;
-
-// TODO: UPDATE IMPLEMENTATION
-public class Flask {
-    /*
-    THIS IS AN EXAMPLE OF A CONSUMABLE DESIGN.
-    */
-
-    // TODO: UPDATE USE METHOD
-    @Override
-    public void use(Entity target) {
-        target.heal(target.getMaxHP() / 10);
-    }
-}
diff --git a/Java-Knight/src/main/java/org/project/item/weapons/Sword.java b/Java-Knight/src/main/java/org/project/item/weapons/Sword.java
deleted file mode 100644
index 96226ee..0000000
--- a/Java-Knight/src/main/java/org/project/item/weapons/Sword.java
+++ /dev/null
@@ -1,26 +0,0 @@
-package org.project.item.weapons;
-
-import org.project.entity.Entity;
-
-import java.util.ArrayList;
-
-// TODO: UPDATE IMPLEMENTATION
-public class Sword {
-    /*
-    THIS IS AN EXAMPLE OF A WEAPON DESIGN.
-    */
-
-    int abilityCharge;
-
-    public Sword() {
-        // TODO: DESIGN SWORD'S ATTRIBUTES IMPLEMENT THE CONSTRUCTOR
-    }
-
-    // TODO: (BONUS) UPDATE THE UNIQUE ABILITY
-    public void uniqueAbility(ArrayList<Entity> targets) {
-        abilityCharge += 2;
-        for (Entity target : targets) {
-            target.takeDamage(getDamage());
-        }
-    }
-}
diff --git a/Java-Knight/src/main/java/org/project/item/weapons/Weapon.java b/Java-Knight/src/main/java/org/project/item/weapons/Weapon.java
deleted file mode 100644
index cb9fcf2..0000000
--- a/Java-Knight/src/main/java/org/project/item/weapons/Weapon.java
+++ /dev/null
@@ -1,35 +0,0 @@
-package org.project.item.weapons;
-
-import org.project.entity.Entity;
-
-// TODO: UPDATE IMPLEMENTATION
-public abstract class Weapon {
-    private int damage;
-    private int manaCost;
-
-    /*
-    TODO: ADD OTHER REQUIRED AND BONUS ATTRIBUTES
-    */
-
-    public Weapon(int damage, int manaCost) {
-        this.damage = damage;
-        this.manaCost = manaCost;
-    }
-
-    @Override
-    public void use(Entity target) {
-        target.takeDamage(damage);
-    }
-
-    public int getDamage() {
-        return damage;
-    }
-
-    public int getManaCost() {
-        return manaCost;
-    }
-
-    /*
-    TODO: ADD OTHER REQUIRED AND BONUS METHODS
-    */
-}