Shenron, the Dragon God of Earth, is extremely afraid of and respectful towards Beerus, the God of Destruction of Universe 7. As the god tasked with destroying planets, Beerus is feared for his immense power to annihilate anything that angers him. Shenron's powers are derived from and limited by his creator, so he would be no match against Beerus. Shenron's pale and fearful demeanor around Beerus is understandable given Beerus's legendary reputation and ability to easily destroy even a Dragon God.