Under Covers is a story mission in South Park: The Fractured But Whole.
Plot details follow.
Go home and head to bed.
After the meeting, head home to go to sleep to prepare for the night ahead. Again, eat dinner alone, then go upstairs to see your parents talking suspiciously about your origins.
You can peek in the keyhole if you want to eavesdrop some more, then go to your room and go to sleep.
You have a long night ahead of you during your next mission, The Hundred Hands of Chaos.