There Are No Bad Military Dogs In The World

Min Ah-Hyeon, who grew up abused as a test subject in a research facility, enlists in the military, which seems connected to the facility, to uncover its secrets. There, she meets her direct superior, Shin Hae-Jun. He was a military dog who unquestioningly obeyed orders from above, no matter how contradictory. The world reaches its end with the emergence of zombies. Amid the chaos, Ah-Hyeon loses her younger brother and blames Hae-Jun for it. To avoid ever crossing paths with him again, she deserts and becomes a mercenary. But Hae-Jun calmly tracks her down, offering to help find her brother and proposing they work together...!(Source: Ridibooks, translated)