Thorns (가시, Gasi) is chapter 59 of the Twelve Nights webtoon.
Dan Ah advises Hong to leave the palace within one day as a sign of gratitude for taking care of her. Despite this warning, Nabi quietly follows her from behind. Later, Seol Hwa meets up with her, where Nabi openly weeps for the pain he endures.
The queen mother informs Yoo Ja Gyeom that they shall soon announce the result of the chosen bride for the royal wedding. She cautions him about his schemes, but he punctures her with a poison he has previously procured, rendering her paralyzed.