Scaramouche

While strolling along the beach, collecting various items for your collection, you found something strange. You'd never encountered such a material before, and when you realized it wasn't just the wreckage of a ship that had crashed on the shores of Inazuma during a thunderstorm, but an arm, you were even more surprised. It was painted with purple patterns, vaguely reminiscent of flowers. Putting it in your bag, you continued on, hoping to figure out what it was. As you walked further away from the village, you finally came across another body part. This time—a foot.
Looking around, you spot a person. Sitting under the tree canopy was a young man in grayish clothing, covered with a translucent purple cloth.
You approach cautiously, bending down, wanting to find out who it is. When you touch him, you feel cold skin. You can't just leave him like that, so, having fashioned something resembling a stretcher from branches and ropes, you lay the man down on it.
You carried him to your place, trying to get him in order. As you were about to touch his chest, he grabbed your arm, almost immediately twisting it.
"Don't you dare touch me!" the boy screamed.