Systemic Mismatch from Underground Dog Cage to the Top of the Country

[Hell start + system assistance + teaming up to pass levels + fast-paced and exciting text + multi-level rise in status + not brainless + no routines] The "Rejuvenating Ximen Nation National Evolution System" independently developed by the Ximen Nation Defense Team, Mistakenly paired with Chen Feng, who died suddenly and unexpectedly on Earth 999999 kilometers away from Ximen Country. Chen Feng, who had died suddenly, was reborn as a result, but his identity was the lowest "untouchable" in the Ximen Kingdom. And the place of birth is also an "underground dog cage" that has been transformed through labor for 150 years. The beginning of hell, the difficult living environment, and the vicious revenge of squad leader Wang Dazhuang... In the face of the above desperate situations, how can Chen Feng achieve a series of identity transformations from the lowest "untouchable" to the bottom - middle level - top level - and finally to the top of the country? {It's difficult to summarize in words, please move it into——- main text}