How can i make a chakra regen when key holding down?

Ok so i am making an Anime game and when the player holds key C he regens his chakra The chakra is in:

game.Players.LocalPlayer.Stats.Chika

This is the script i want to execute when the players holds C:

while wait() do
    while Chika.Value < 10000 do
        wait(0.01)
        Chika.Value = Chika.Value + 1
    end
end