Does anyone know how to unlock the dlc?

[asuka langley sōryū]

The only thing I want is to be able to play the dlc but you already know the situation xd, do you know if there is a way to unlock it from the game files, or any tutorial?

[Chilla]

you will have to buy a steam key for the dlc

[DannDaMANN]

Even if you did somehow only get the dlc (which it's impossible to get only dlc), you would still be missing out on episode 5 which is a vital exposition to the arc.