As the System shared Jin information about the Birth Mothers, he had already ordered a few penguins to prepare some food for the White Demon Rats to partake. But because he needed to 'interrogate' a little more, he continued to make them stay in the Dungeon Maker instance.
The Birth Mothers were surprised when there was a group of walking birds coming their way and they thought that Jin had betrayed them, going back at his word after he took the papers. However, as the penguins came closer, they presented to the White Demon Rats a buffet of food for them to enjoy.
The smell was enough to capture their souls and as the Birth Mothers craved for proper food, they continued to look at their leader as if for a sign for them to dig in. "Why do you need your leader's approval to eat? Just go ahead and eat. There is enough for everyone." Jin said as he told the Birth Mother's leader to meet him after she had her fill.
