Seeing how the demon world is like

Ting tun or zin yuan like the name hint why he was laughing like a wolf who had it first prey after 1 year has pass zin yuan is now 2 years old he learned how to use darkness at that age his father was surprised because it take years to learn it he was the smartest person in the family they thought but he already knew it from his other life the life he hated being challenged by all demon king from other countries he even got killed by a demon king right now he is trying to use a spell the second later he herd *ding* System activated do you wish to learn the skill yes/no zin yuan was confused he said yes [system making changes please wait a moment] after 3 seconds[skill level up] zin yuan finally understood what was happening he had a system but how? He thought it must be people playing prank on him but he saw no body.