diff --git a/api/src/main/java/kr/toxicity/damage/api/manager/ConfigManager.java b/api/src/main/java/kr/toxicity/damage/api/manager/ConfigManager.java
index 99621fb..6f579ad 100644
--- a/api/src/main/java/kr/toxicity/damage/api/manager/ConfigManager.java
+++ b/api/src/main/java/kr/toxicity/damage/api/manager/ConfigManager.java
@@ -54,7 +54,12 @@ public interface ConfigManager extends DamageManager {
      * @return auto save time
      */
     long autoSaveTime();
-
+    /**
+     * Checks if decimal damage display is enabled
+     * Default: false
+     * @return decimal damage
+     */
+    boolean showDecimalDamage();
     /**
      * Gets default damage effect
      * @return default damage effect
diff --git a/core/src/main/kotlin/kr/toxicity/damage/effect/DamageEffectImpl.kt b/core/src/main/kotlin/kr/toxicity/damage/effect/DamageEffectImpl.kt
index a1c9696..b71bd12 100644
--- a/core/src/main/kotlin/kr/toxicity/damage/effect/DamageEffectImpl.kt
+++ b/core/src/main/kotlin/kr/toxicity/damage/effect/DamageEffectImpl.kt
@@ -1,5 +1,6 @@
 package kr.toxicity.damage.effect
 
+import kr.toxicity.damage.api.BetterDamage
 import kr.toxicity.damage.api.effect.DamageEffect
 import kr.toxicity.damage.api.effect.DamageEffectCounter
 import kr.toxicity.damage.api.equation.TEquation
@@ -38,8 +39,12 @@ class DamageEffectImpl(section: ConfigurationSection) : DamageEffect {
     private val opacity = section.getAsEquation("opacity") ?: TEquation.FULL_OPACITY
     private val counter = DamageEffectCounter()
     private val numberFormat = runCatching {
-        DecimalFormat(section.getString("number-format", "#"))
-    }.getOrNull() ?: DecimalFormat("#")
+        if (section.isSet("number-format")) {
+            DecimalFormat(section.getString("number-format", "#"))
+        } else {
+            null
+        }
+    }.getOrNull()
 
     override fun image(): DamageImage = image
     override fun duration(): Int = duration
@@ -53,5 +58,9 @@ class DamageEffectImpl(section: ConfigurationSection) : DamageEffect {
     override fun skyLight(): TEquation = skyLight
     override fun counter(): DamageEffectCounter = counter
     override fun opacity(): TEquation = opacity
-    override fun numberFormat(): NumberFormat = numberFormat
-}
\ No newline at end of file
+    override fun numberFormat(): NumberFormat = numberFormat ?: if (BetterDamage.inst().configManager().showDecimalDamage()) {
+        DecimalFormat("#.#") // Format avec une décimale si l'option est activée
+    } else {
+        DecimalFormat("#") // Format entier par défaut
+    }
+}
diff --git a/core/src/main/kotlin/kr/toxicity/damage/manager/ConfigManagerImpl.kt b/core/src/main/kotlin/kr/toxicity/damage/manager/ConfigManagerImpl.kt
index f59219d..850072c 100644
--- a/core/src/main/kotlin/kr/toxicity/damage/manager/ConfigManagerImpl.kt
+++ b/core/src/main/kotlin/kr/toxicity/damage/manager/ConfigManagerImpl.kt
@@ -25,6 +25,7 @@ object ConfigManagerImpl : ConfigManager {
     private var packType = "zip"
     private var createMcmeta = false
     private var autoSaveTime = 300L * 20
+    private var showDecimalDamage = false
     private var effectSupplier: () -> DamageEffect? = {
         null
     }
@@ -46,6 +47,7 @@ object ConfigManagerImpl : ConfigManager {
             packType = getString("pack-type") ?: "zip"
             createMcmeta = getBoolean("create-mcmeta")
             autoSaveTime = getLong("auto-save-time", 300) * 20
+            showDecimalDamage = getBoolean("show-decimal-damage", false)
             effectSupplier = (getString("default-effect") ?: "default_effect").let {
                 {
                     EffectManagerImpl.effect(it)
@@ -84,6 +86,7 @@ object ConfigManagerImpl : ConfigManager {
     override fun createMcmeta(): Boolean = createMcmeta
     override fun autoSaveTime(): Long = autoSaveTime
     override fun metrics(): Boolean = metrics != null
+    override fun showDecimalDamage(): Boolean = showDecimalDamage
     override fun defaultEffect(): DamageEffect? = effectSupplier()
     override fun defaultSkin(): DamageSkin? = skinSupplier()
-}
\ No newline at end of file
+}
diff --git a/core/src/main/resources/config.yml b/core/src/main/resources/config.yml
index bbe876c..357fa46 100644
--- a/core/src/main/resources/config.yml
+++ b/core/src/main/resources/config.yml
@@ -6,4 +6,5 @@ pack-type: zip #folder, zip
 create-mcmeta: false
 auto-save-time: 300
 default-effect: "null" #Default effect
-default-skin: "default_skin"
\ No newline at end of file
+default-skin: "default_skin"
+show-decimal-damage: false
diff --git a/core/src/main/resources/default/effects/default_effect.yml b/core/src/main/resources/default/effects/default_effect.yml
index 6a480de..c58f265 100644
--- a/core/src/main/resources/default/effects/default_effect.yml
+++ b/core/src/main/resources/default/effects/default_effect.yml
@@ -36,4 +36,23 @@ default_effect_crit:
         scale: #1.5 to 0
             x: 1.5cos(t / 40 * pi)
             y: 1.5cos(t / 40 * pi)
-            z: 1.5cos(t / 40 * pi)
\ No newline at end of file
+            z: 1.5cos(t / 40 * pi)
+default_effect_decimal:
+    image: default_image
+    duration: 20
+    interval: 2
+    number-format: "#.#"
+    color: "#FFD800"
+    transformation:
+        position:
+            x: 0
+            y: 1.5sin(t / 40 * pi)
+            z: 0
+        rotation:
+            x: 60(r - 0.5)
+            z: 0
+            y: 60(r - 0.5)
+        scale:
+            x: cos(t / 40 * pi)
+            y: cos(t / 40 * pi)
+            z: cos(t / 40 * pi)
diff --git a/core/src/main/resources/default/images/default_image.yml b/core/src/main/resources/default/images/default_image.yml
index 89b03f7..4c4004b 100644
--- a/core/src/main/resources/default/images/default_image.yml
+++ b/core/src/main/resources/default/images/default_image.yml
@@ -1,3 +1,4 @@
 default_image:
   file: "default.png"
-  space: -2
\ No newline at end of file
+  codepoints: "0123456789."
+  space: -2