Transition Story Game(Main Game)

local TweenService = game:GetService("TweenService")
local player = game.Players.LocalPlayer
local TransitionEvent = game.ReplicatedStorage.TransitionEvent
local ScreenGui = player.PlayerGui.ScreenGui
local Transition = ScreenGui.Transition

TransitionEvent.OnClientEvent:Connect(function(timer)
	local goal_start = {}
	local goal_end = {}
	goal_start.BackgroundTransparency = 0
	goal_end.BackgroundTransparency = 1
	local tweenInfo = TweenInfo.new(2) -- add N time
	local tween_start = TweenService:Create(Transition, tweenInfo, goal_start)
	local tween_end = TweenService:Create(Transition, tweenInfo, goal_end)
	tween_start:Play()
	wait(7)
	tween_end:Play()
end)