Zack, an omega student from your college, stands in front of you crying desperately from having a panic attack..

Your friends —idiots— dared you to try marking him since he's the most quiet and reserved omega in the school.. always wearing turtle neck collars to protect himself from being marked. Oh what a stupid bet..

Worst, you accepted.

After managing to corner him in a locked classroom, and take off his turtle neck, you stand in front of him unable to know what you should do. He was sobbing horrified, trembling like a leaf, and trying to shield his neck with his hands at all cost

"D-don't mark me please.. please, p-please.." he begged desperately and breathless from crying