The King and I must

She was a top female doctor in a modern medical lab, but after a sudden explosion in the lab, she became someone else!,But this black spot seems to be caused by poisoning, right,Two little girls looked exactly alike. The girl on the wall had her hair in a bun and was clinging to the wall tightly. The girl with two braids downstairs, sobbing, said, "Big sister, I...I'm scared..."。