diff --git a/Dialogues/interfloor.dialogue b/Dialogues/interfloor.dialogue
index 0d32f67..df05d9d 100644
--- a/Dialogues/interfloor.dialogue
+++ b/Dialogues/interfloor.dialogue
@@ -1,3 +1,15 @@
+~ interfloor_0
+
+do Patient.marker.fill(0)
+set Patient.dialog_tree = Patient.build_dialog_tree([])
+
+do Globals.character_label_color_change.emit(Color(0,0.8,1,1))
+
+Prime Supervisor: FIRST DIALOGUE - WORK IN PROGRESS
+
+=> END
+
+
 ~ interfloor_1
 
 do Patient.marker.fill(0)
diff --git a/main_hub.gd b/main_hub.gd
index 7260012..70c8527 100644
--- a/main_hub.gd
+++ b/main_hub.gd
@@ -95,16 +95,21 @@ func start_day():
 	await get_tree().create_timer(1.0).timeout
 	
 	#Setting up new patient
-	$ScreeningDesk.console_display(Globals.directives)
 	$ScreeningDesk.accurate_diagnoses = 0 #Resetting accurate_diagnoses value at the day's beginning
-	$ScreeningDesk.new_patient()
 	$ScreeningDesk.update_middle_screen(Globals.day_count, Globals.floor_count, $ScreeningDesk.accurate_diagnoses, Globals.diagnoses_quota)
 	
 	#Transitioning to the screening desk
 	scenes_to_hide = scenes_to_show
-	scenes_to_show = [$ScreeningDesk, $ScreeningDesk.next_patient, UI, UI.get_node("UI/UpperContainer")]
+	scenes_to_show = [$ScreeningDesk, UI, UI.get_node("UI/UpperContainer")]
 	TransitionScreen.transition("big", scenes_to_hide, scenes_to_show)
 	await TransitionScreen.transition_finished
+	
+	#Supervisor Dialogue
+	$ScreeningDesk.supervisor_dialogue(Globals.interfloor_dialogue, "interfloor_" + str(-Globals.floor_count-1))
+	await $ScreeningDesk.supervisor_dialogue_finished
+	
+	$ScreeningDesk.console_display(Globals.directives)
+	$ScreeningDesk.new_patient()
 
 
 #Saves game state on the selected save slot
diff --git a/screening_desk.gd b/screening_desk.gd
index e3c30ab..5d4bf08 100644
--- a/screening_desk.gd
+++ b/screening_desk.gd
@@ -5,6 +5,7 @@ extends Control
 @onready var patient_file_title = $LowerHalf/Computer/Margin/ComputerScreen/ComputerTabs/FileContainer/PatientFileTitle
 @onready var patient_recording = $LowerHalf/Computer/Margin/ComputerScreen/ComputerTabs/Recording
 @onready var patient = $UpperHalf/ControlGlass/Patient
+@onready var supervisor = $UpperHalf/ControlGlass/Supervisor
 @onready var next_patient = $LowerHalf/Computer/Margin/NextPatient
 @onready var end_day = $LowerHalf/Computer/Margin/EndDay
 @onready var green_button = $LowerHalf/GreenButton
@@ -38,6 +39,8 @@ extends Control
 var main: Node
 var accurate_diagnoses = 0
 
+signal supervisor_dialogue_finished
+
 func _ready() -> void:
 	
 	#Referencing main node
@@ -366,12 +369,25 @@ func descend_floor(): #Descends to next floor
 	console_screen.hide()
 	
 	#Interfloor dialogue
-	var file_path = "res://Art/Patients/prime_supervisor/prime_supervisor_hologram.png"
-	patient.texture = load(file_path)
-	patient.show()
-	main.start_balloon("screening", Globals.interfloor_dialogue, "interfloor_" + str(-Globals.floor_count-1))
-	await DialogueManager.dialogue_ended
-	patient.hide()
+	supervisor_dialogue(Globals.interfloor_dialogue, "interfloor_" + str(-Globals.floor_count-1))
+	await supervisor_dialogue_finished
 	
 	#Setting up new patient
 	new_patient()
+	
+
+
+#Supervisor dialogue, mainly between floors
+func supervisor_dialogue(dialogue_resource, dialogue_start):
+	
+	#Interfloor dialogue
+	supervisor.show()
+	supervisor.reveal_spray()
+	await supervisor.reveal_done
+	main.start_balloon("screening", dialogue_resource, dialogue_start)
+	await DialogueManager.dialogue_ended
+	supervisor.hide_spray()
+	await supervisor.hide_done
+	supervisor.hide()
+	
+	supervisor_dialogue_finished.emit()
diff --git a/screening_desk.tscn b/screening_desk.tscn
index e7da8c6..bbda372 100644
--- a/screening_desk.tscn
+++ b/screening_desk.tscn
@@ -1,9 +1,11 @@
-[gd_scene load_steps=40 format=3 uid="uid://chytk2cctjk3x"]
+[gd_scene load_steps=43 format=3 uid="uid://chytk2cctjk3x"]
 
 [ext_resource type="Script" uid="uid://b3ms0imu0umn8" path="res://screening_desk.gd" id="1_1s7k3"]
 [ext_resource type="Texture2D" uid="uid://5f5bsergnjtv" path="res://Art/Patients/prime_supervisor/prime_supervisor_hologram.png" id="3_fev1v"]
 [ext_resource type="Texture2D" uid="uid://b2epvjeqvmgrs" path="res://Art/Rooms/screening_room/screening_room_glass.png" id="3_nxnrp"]
 [ext_resource type="Texture2D" uid="uid://by34irl73n8pb" path="res://Art/Rooms/screening_room/backroom.png" id="4_fij8w"]
+[ext_resource type="Shader" uid="uid://dwepb0lm1veje" path="res://supervisor.gdshader" id="4_qsin6"]
+[ext_resource type="Script" uid="uid://cdkbyikbjqlsh" path="res://supervisor.gd" id="5_43vqp"]
 [ext_resource type="Texture2D" uid="uid://ds1whnmwt7xjt" path="res://Art/Rooms/screening_room/screening_room.png" id="5_aa8r5"]
 [ext_resource type="Texture2D" uid="uid://4qtc0tkq2wba" path="res://Art/Rooms/screening_room/shutter_top.png" id="6_1rj24"]
 [ext_resource type="Texture2D" uid="uid://cci0pb12chlps" path="res://Art/Rooms/screening_room/computer.png" id="6_6a8ar"]
@@ -31,6 +33,11 @@
 [sub_resource type="Theme" id="Theme_63o5x"]
 RichTextLabel/fonts/normal_font = ExtResource("14_0pvwy")
 
+[sub_resource type="ShaderMaterial" id="ShaderMaterial_w70jd"]
+shader = ExtResource("4_qsin6")
+shader_parameter/progress = 0.0
+shader_parameter/softness = 0.05
+
 [sub_resource type="Animation" id="Animation_ub1ft"]
 length = 0.001
 tracks/0/type = "value"
@@ -296,6 +303,7 @@ grow_horizontal = 2
 grow_vertical = 2
 
 [node name="Patient" type="TextureRect" parent="UpperHalf/ControlGlass"]
+visible = false
 z_index = 2
 layout_mode = 1
 anchors_preset = 7
@@ -311,6 +319,25 @@ grow_vertical = 0
 texture = ExtResource("3_fev1v")
 stretch_mode = 3
 
+[node name="Supervisor" type="TextureRect" parent="UpperHalf/ControlGlass"]
+visible = false
+z_index = 2
+material = SubResource("ShaderMaterial_w70jd")
+layout_mode = 1
+anchors_preset = 7
+anchor_left = 0.5
+anchor_top = 1.0
+anchor_right = 0.5
+anchor_bottom = 1.0
+offset_left = -300.0
+offset_top = -450.0
+offset_right = 300.0
+grow_horizontal = 2
+grow_vertical = 0
+texture = ExtResource("3_fev1v")
+stretch_mode = 3
+script = ExtResource("5_43vqp")
+
 [node name="LowerHalf" type="Control" parent="."]
 z_index = 6
 layout_mode = 1
diff --git a/supervisor.gd b/supervisor.gd
new file mode 100644
index 0000000..4eaf99f
--- /dev/null
+++ b/supervisor.gd
@@ -0,0 +1,54 @@
+extends TextureRect
+
+@onready var mat := material as ShaderMaterial
+
+signal reveal_done
+signal hide_done
+
+func _ready():
+	
+	randomize()
+	 # --- Création du bruit ---
+	var noise := FastNoiseLite.new()
+	noise.noise_type = FastNoiseLite.TYPE_SIMPLEX
+	noise.frequency = 20.0
+	noise.seed = randi()
+	
+	var noise_tex := NoiseTexture2D.new()
+	noise_tex.noise = noise
+	noise_tex.width = 512
+	noise_tex.height = 512
+	noise_tex.seamless = true
+	
+	mat.set_shader_parameter("noise_tex", noise_tex)
+
+
+func reveal_spray():
+	
+	mat.set_shader_parameter("progress", 0.0)
+	
+	var tween = create_tween()
+	tween.tween_method(set_progress, 0.0, 1.0, 3.0) \
+		.set_trans(Tween.TRANS_SINE) \
+		.set_ease(Tween.EASE_OUT)
+	
+	await tween.finished
+	reveal_done.emit()
+	
+
+func hide_spray():
+	
+	mat.set_shader_parameter("progress", 1.0)
+	
+	var tween = create_tween()
+	tween.tween_method(set_progress, 1.0, 0.0, 3.0) \
+		.set_trans(Tween.TRANS_SINE) \
+		.set_ease(Tween.EASE_OUT)
+	
+	await tween.finished
+	hide_done.emit()
+
+
+func set_progress(value: float):
+	
+	mat.set_shader_parameter("progress", value)
diff --git a/supervisor.gd.uid b/supervisor.gd.uid
new file mode 100644
index 0000000..817cbf9
--- /dev/null
+++ b/supervisor.gd.uid
@@ -0,0 +1 @@
+uid://cdkbyikbjqlsh
diff --git a/supervisor.gdshader b/supervisor.gdshader
new file mode 100644
index 0000000..8d3c106
--- /dev/null
+++ b/supervisor.gdshader
@@ -0,0 +1,12 @@
+shader_type canvas_item;
+
+uniform sampler2D noise_tex;
+uniform float progress : hint_range(0.0, 1.0) = 0.0;
+uniform float softness : hint_range(0.001, 0.2) = 0.05;
+
+void fragment() {
+    vec4 img = texture(TEXTURE, UV);
+    float noise = texture(noise_tex, UV).r;
+    float alpha = 1.0 - smoothstep(progress - softness, progress + softness, noise);
+    COLOR = vec4(img.rgb, img.a * alpha);
+}
\ No newline at end of file
diff --git a/supervisor.gdshader.uid b/supervisor.gdshader.uid
new file mode 100644
index 0000000..56df8b4
--- /dev/null
+++ b/supervisor.gdshader.uid
@@ -0,0 +1 @@
+uid://dwepb0lm1veje