*Somewhere in the Heaven*
The senior angel who had the duty to supervise Aki was sitting on a bench near a large beautiful tree. An angel came flying slowly and then stopped when he reached near the senior angel. He sat on the other side of the bench and then spoke, "You were with Aki during his final moments as an angel right?"
The senior angel looked towards him and then nodded.
He knew that the angel used to be acquainted with Aki before he became an guardian angel.
The angel continued speaking, "I know Aki has been banished to the human realm and has now become a human. But do you know what happens after that?"
The senior angel hesitated for a while. However, after a slight hesitation, he decided to tell him.
"After an angel is banished to the human realm, he starts to lose the part of his memory from when he was an angel. This means that they forget why they were banished, and also the fact that they were angels. They are made to believe that they were humans from the very beginning."
*Somewhere in the human realm*
Aki was driving to his office, unaware that he was going to lose his memory and forget everything; including Rin.