It's the End of the World at the Beginning, and the System Gives Me a Mythical Beast That Makes Me Invincible

[National destiny + invincibility + funny + cool writing + novice writing style + daily life + dog food] Mu Xiaoyi was born in the dimensional era after the nuclear war, but was selected by the ancient system and became the chosen one. With the blessing of the system and an annoying Erha, he realized his continuous self-upgrading and played in the dimensional era. Academic tyrant, rich man, martial arts leader, political figure, many roles shine in him. Suddenly, the war broke out again in the Kaiyuan era. At the time of crisis, Mu Xiaoyi activated the ancient spiritual enlightenment system, inherited the power of the ancient giants, and used quantum communication technology to command the three realms. After fighting against the demons, mankind finally ushered in the most prosperous Shengyuan era. The full text is full of imagination.