The wooden deck was a place Aaron had shown to his Little Cupcake and told her that the place wasn't haunted but it was false rumors to avoid people entering the place and dirty the area.
Later days they had numerous times visited the place and he would teach her school works sitting on the deck without any disturbance which they had faced in the cafe.
On his eighteenth birthday, Little Ava wanted to buy him a gift but he had asked her to prepare something by herself. He was free before the fixed time of their meet and he reached the deck without knowing he was being followed. Then he was attacked and lost his consciousness. When he woke up, he was on the flight next to his grandfather.
He couldn't imagine how long she must have waited for him and what might have happened later that she forgot all his memories leaving her like a shell making everything shallow.