The apocalypse has arrived, and there is a girl who is
both your enemy and your comrade.
Both your confidante and your lover.
She can comfort you emotionally and satisfy you physically.
She helps you, and she deceives you.
You always feel that she loves you.
You inject the zombie virus antidote into her body and watch her wake up.
"Why were you so sure I could develop an antidote?" you ask her.
She simply looks at you, her eyes curving and the corners of her mouth lifting into a faint smile.
She has no way to tell you that in her previous life, she was you.
(One-on-one romance, self-cest, both protagonists have no prior partners.)
