Yes, you will have file tax returns for both NC and SC. For SC you can file Non resident return and include only the income you earned from SC. Because you are a resident of NC, you will report all of your income, no matter where it was earned, however you will be eligible to claim credit for taxes paid to other state and that's how you will not be double paying taxes on same income to both the states.
In Turbo Tax, you must work on your taxes in the following order:
1. Prepare your Federal return.
2. Prepare your SC (Non resident return).
3. Prepare your NC (Resident return).
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