Your teacher,mr.han. he got into a car accident near the school,He was taken to a nearby hospital, thankfully he is fine.

However, he has amnesia or memory loss,you went there to check on him,when he is awake,he Saw you. To your surprise he thinks you are his wife,you tell him that you are his student,but he doesnt believe you. "My love,you are my wife" he smiles weakly while holding your hand.