Apocalypse Rebirth: My Roommate, the Campus Belle, Is a Reborn War Goddess

[Reborn female war god] [Apocalyptic survival] Me, Ning Chen: In my previous life, I was one of Haicheng’s strongest Awakened Ones. I died during a siege by mutated monsters. ---In this life, I’ve been reborn. I swear I’ll uncover the truth behind the apocalypse with everyone, and lead them all to survive! ---Huh? I’ve found out there’s something strange about my beautiful college roommate. It seems one of her friends has also been reborn. Me, Xia Siyu: In my previous life, I was one of Great Xia’s Ten Great War Gods. I fell after losing to the mutated insect queen’s nest. ---After being reborn, I swore I’d return to the peak. Wait... hold on... why is the story going differently? Why does the guy I share an apartment with seem a tiny bit too strong? Hey... sis, why don’t you just marry him? Then he can carry me to victory too!