The arrows are so slow because they're coated with deadly poison, dragon arsenic. Even an old man can't dodge them. They need to cut the arrows into pieces, but first, they need to take off the clothes of the man who's in the path of the arrows. They're worried that the man will be killed if he touches the poison, but then they realize that he's wearing a tianxing mask, so they don't have to worry about it. The arrows keep getting faster and faster as they go, so the group needs to be careful when they pass through the walls of arrows. The group starts to panic when they see that the arrows are blocking the way ahead. They realize that they still have to go into the secret realm, and that they'll have to follow their little brother, who can lead them through. They decide to use something to block the arrows, since they've never seen anything like this before.