Pororo and Crong are hearing someone who calls them. Pororo is curious about that so asks to the Crong what it is.
Pororo_ENGLISH2_4_Pororo_ENGLISH2_4_ep7_27 Pororo_ENGLISH2_4_Pororo_ENGLISH2_4_ep7_28 Pororo_ENGLISH2_4_Pororo_ENGLISH2_4_ep7_29 Pororo_ENGLISH2_4_Pororo_ENGLISH2_4_ep7_30