As we know, Levi the knight and Aky the mysterious girl suddenly appear on a island with japanese words around. Do you know why they are on east? Let's we know the flashback.
Back to the time before the knight dying.
The knight leave the bar after taking rest after do a far travel, from Rizart town to the Mildtown. On the way, as he going to Mayor's he see a mysterious cat is walk to the alley. Without aware of danger, he follow the cat, and he see a little girl surrarounded a bandits. He want to help, but the little girl run away from the bandits. Now only bandits left on there with the knight. The knight fight with the bandits, and end up with defeat bandits, he just injure the bandits. The bandits run away, and now he continue to the mayor's office. because the bandits want to take revenge, they give a poison on the knight health potion.
Now, because the knight didn't aware, he drink his potion that have a poison inside, and he now dying.
as it happen, Aky, the little girl that actually the little girl that surrounded by a bandits before saw the knight, and the bandits. She fight the bandits, but she forget if she was hungry, and make her weak and defeated by the bandits.
now the bandits take them two to the east for sold them for money. For your information, this bandits is elite bandits that have a special item, ancient book. The ancient book has a magic that can create any common item, like sleep potion, arrow, or any common item.
After the knight and Aky defeated, and they two taken to the east. They two locked on the a blank room that on south of east island.
That's all the flashback that not written on the part of the story before.