W. Va. Code § 61-11-21: Cumulative sentences.

When any person is convicted of two or more offenses, before sentence is pronounced for either, the confinement to which he may be sentenced upon the second, or any subsequent conviction, shall commence at the termination of the previous term or terms of confinement, unless, in the discretion of the trial court, the second or any subsequent conviction is ordered by the court to run concurrently with the first term of imprisonment imposed.