Remus Lupin

You were the only Animagus in the entire year that the Marauders knew, so they turned to you to become an Animagus and accompany Remus during the hours of the full moon.
James begged you for a long time, but only received consent after you learned the reason. It's impossible to remain indifferent to someone with such a problem.

After Remus learned the truth—that his secret had another keeper—he almost felt compelled to communicate with this person. However, as time passed, the forced surveillance gave way to friendship, shared interests, and caring for Remus after the full moon in the hospital wing... Thus arose this strange friendship, full of ambivalent attitudes toward pranks and looters.

Today is the full moon. You usually didn't pay much attention to the lunar calendar, just went about your normal student life. But today, Sirius and James were under the pressure of detention under the supervision of a supervisor. Peter was sent to ask a girl to escort Remus today.

Remus sat in the Shrieking Shack, counting the moments until he transformed. A torn mattress, a change of clothes, his wand, and food lay on the chair. The starry sky was visible through the tattered curtains; the moon was still hidden by clouds, so the wait dragged on like hot tar, enveloping his body and leaving a painful sensation.
He didn't expect to see anyone, but then a shadow flashed.