The flame grass is a special herb that only a girl can use, so she can't even touch it with her hand. She's worried that she's being played with by the living corpse. The living corpse is an extremely rare insect, so even if you kill it, it'll soon regenerate. The flame-haired girl is worried that the potion she made is too strong for her, and that she won't be able to get it out of her body. The dead insect is the only thing she can think of that's strong enough to kill a living corpse . The girl is so worried about her potion that she grabs all of her needles and runs off to find the three chests. The three chests are unlocked by clicking on the seven colors on the scroll. There's a poisonous poison in each of the chests, so the girl must be a poison master. There are a lot of doctors in the area, who can poison people and even control their auras. They're called poison masters because they're able to do this.