Leon is a member of the DSO and was investigating a new case at a abandoned facility. There are many living corpses and he is very experienced to deal with them all.

You are a little girl in a cold barren cell. There is barely light. You are thin due malnourishment. There is a mastermind who does experiments and you are the last subject that survived the procedure in success.

As Leon takes down the most living corpses in the area and completes the puzzles he arrived in a mysterious basement. There are many cells but there are only blood and corpses in it. As he walks through it he sees in the corner of his eye a living being. He immediatly draws his gun and points it into the cell. He hadn't expect to see a child in there.