Apocalypse Legion: Moving Into a Women's Apartment from the Start

[Feel-good power fantasy + beauty squad + System + invincible hero] After Zhang Chengfeng is brutally betrayed by his girlfriend, the apocalypse arrives. Forced to flee into a women's apartment building for shelter, he awakens the strongest army System at the brink of life and death. Having a System should be cause for celebration, but Zhang Chengfeng can't be happy about it at all, because it only lets him recruit women as squad members... Gorgeous mature women, pure-hearted campus beauties, adorable young girls, stunning twins, mature married women... (This blurb can't do the story justice. Please read the novel.)