I've Become a Dragon-Slaying Warrior, and You're the One Who Invaded?

Wang Zhihao, who originally thought he would remain mediocre, accidentally awakened the "Brave System". I wanted to take my good friend Ma Chao with me to ascend to godhood, but I found that my system didn't seem very smart. [Congratulations on swallowing the Frost Lord, awakening ice magic and gaining 1,000 experience points. Wang Zhihao looked at the "Green Tongue" ice cream that was about to melt and fell into deep thought. [Congratulations on surrendering the King of Bronze and Fire, and gaining Steel Refining Technique and 1500 experience points. Wang Zhihao looked at the gecko he had just bought for 99 yuan and thought that in addition to his bad brains, the system also seemed to have bad eyesight. … … My name is Freya, the daughter of the Dragon Clan, from the future. A month later, another world invaded Blue Star, and my father was conceived at this moment. Humans could not compete with our powerful strength, and soon we controlled most of Blue Star, until an epic hero killed my father with his own hands... God has given me a chance, and I must stop Wang Zhihao from becoming an epic hero before the invasion of another world. Oh, and his police dog Governor, Ma Chao.