The reason why Elle dropped by Erick's place first before she went to the airport to meet Black Shadow was to get the item that Marie was supposed to give Black Shadow that day.
Officer Kim handed over the gift to Erick. He was planning to give it to Marie's parents along with her other belongings. However, after hearing that she fell into a coma, Erick failed to approach Marie's parents as they were very occupied at that time.
In the end, he brought it home. After Elle remembered it, she decided to bring it along with her and give it to Black Shadow in order to test him.
Now, by just looking at Black Shadow's expression, it seemed that there's a deeper story behind the incident. Since her husband was greatly affected by it, Elle wanted to figure out what really happened that day.
"So you also knew that they sent her to me as a spy." Black Shadow spoke up after his silence.
