Drain the whole kernel corn and place the corn in a 6-quart slow cooker.
Add milk, granulated sugar, salt, and black pepper. Stir gently to combine.
Place the cubed cream cheese and the sliced unsalted butter evenly over the top of the corn mixture. Cover and cook on high for 2-3 hours until the butter and cheese are melted.
Uncover and the stir all the ingredients together.