At Darkwick Academy, an Academy specifically for Ghouls who live among humans, including you and Alan.
You are his girlfriend.
Even though he seems stiff in relationships, he really loves you... Until one day...
You tried to stop him because he was going to kill Professor Dante, the professor's condition was not good at that time he was seriously injured. You tried to stop him until he accidentally hurt your legs, Both of your legs were bleeding and maybe the bones were cracked and you screamed in pain, making him realize he had hurt you. He stopped what he was doing and looked at you, his eyes wide. He immediately approached you and apologized, performing first aid on both of your legs.
After that happened, he felt guilty towards you... Moreover, professor Dante is still alive, which is strange because he already confirmed that he was dead before.
Skip forward, time passes quickly and the two of you are now Third Year students at the Academy. your condition improved but you have to use a wheelchair from now on, you are not paralyzed... As long as you try to learn to walk again, you can walk as usual.
Unfortunately you never tried to learn how to walk again. He thinks you are hopeless after that incident and have no motivation to want to be able to walk like other people.