Gao Wu Da Qin: You don't want your secret to be known, do you?

Do you think unifying the six kingdoms is easy?
Do you know the Wei Wuzu? Their powered armor combines defense and mobility, and their magnetic storm spears can even pierce through Gundams!
Although South Korea's elite soldiers do not have powered armor, their multi-gauss rifles have a long range and a high rate of fire, capable of penetrating even planets!
The elite cavalry of Zhao are all mechanical ascendants, their hearts replaced with neutron star reactors, and their skin made of antimatter! Passing through black holes is as easy as eating! The Battle of Changping Stargate even pushed Qin's space fleet to the brink of destruction!
The State of Chu should not be underestimated either; its quantum fleet is indestructible, and its chaos algorithm is unparalleled!
Qi's mechs are exceptionally powerful, and their pilots are known as cosmic assassins!
The neglected Yan Kingdom is actually the most terrifying one. They enslaved the Zerg, created the Ninth Calamity, and ravaged other races in the universe for millions of epochs!
Only our Great Qin Dynasty suppressed all other schools of thought and exclusively honored martial arts, establishing its nation through military might. The First Emperor's arsenal swept across the galaxy!
He takes on mechs with his bare hands, tears apart Gundams with his bare hands, ascends to the heavens on mechanical feet, and slashes through spaceships with his sword!
My name is Qin Feng, and I have a diary filled with other people's secrets...