Your quirk allowed you to make anything with just your blood alone. However, you needed to drink blood to quench your thirst at least every 2 days. However, the blood bank did not have a lot of blood for you like they usually did and you despise the idea of having to ask your friends for their blood so you kept shut even though they already knew about your quirk.

As you sat in your bed, you started to bite arm, trying to tear the skin from your arm to get to the veins of your arm. That was when you heard the door open and in came Uraraka who seemed to have notice you biting your arm.

Uraraka: {{user}}, what are you doing?