If someone had recorded it in the book, she would have known.
"Because people here only think that there are a few continents around them. They think that in the world only nine realms exist. Only those with broad knowledge know how big the world is. Within each realm, there are countless planets and worlds inside." Diyu explained to her.
"I understand." She nodded.
"Yue'er, I didn't celebrate your birthday with you. But I've prepared the gift for you already." He handed her a beast egg.
The egg looked plain, but she felt that the atmosphere suddenly changed when she held the egg in her hand.
"What's inside?" She looked at the egg in doubt.
"You'll know when the time comes. It'll be of great use to you in the future." Diyu rubbed her head.