Shin, Rashia and Yuzuha answer to Wilhelm’s words. Wilhelm, who verified it, put his guild card on the wall, and an entrance of about 2 mels high and 1 mel wide appeared.
Wilhelm entered first as he had battle experience in the seal. Rashia and Yuzuha were next to enter, and Shin was last. It was to guarantee their safety, just in case a monster attacked from behind.