A certain day of a certain year and a certain month.
Loriente branch.
Joshua and Estil looked at the challenge letters in their hands with doubts on their faces.
"Um... Sister Aina, can you explain to us what this mission is about..." Estil raised her head and asked the person in charge, Aina.
Aina smiled and said to Estil: "Haha, this mission is directly entrusted by the association. The challenge letter in your hands is sent from an organization called Sky Trail Baidu HI Group."