Many sources are indicating that Luhan has submitted his lawsuit at the Seoul Central Court this morning (10th KST).
The type of lawsuit he has filed, which is to determine that the contract is not valid and nullify it, is the same one filed by former member Kris.
It's being reported that the same law firm that handled Kris's case is also taking on Luhan's.
SM Entertainment has responded to say that they're looking into confirming the situation.