City of Sin: I Slay My Way to Godhood with My Corpse-Raising Wife

A scheming, aloof older brother VS a petite zombie younger sister They fight monsters together and save each other [Supernatural mystery + invincible protagonist + no System + dual identities + one heroine + ultra-sweet romance + action-packed thrills!!!] This is an urban world where demons have awakened and evil is everywhere. It is an age of despair! Demons embodying the Seven Deadly Sins awaken from the void, “using desire as bait to draw out sin.” From then on, demons run rampant in the human world. Terrifying whispers linger. Sinful temptations call from the shadows. Commit crimes! Commit crimes! Commit crimes! Sin is born in the heart, and people are demons! The moment desire consumes you is the moment you become a demon! But there are those who fear neither the demons' threats nor the end of life! They master the sins within, awaken their “Sin Artifacts,” and become Sin Purifiers, protecting countless homes beneath the night sky! With my hot-blooded spirit, I will slay the demons! “When the demons descend, we shall wield our swords, our bodies, our blood, and our lives to protect everlasting peace for humanity!” When Qin Xie opened his eyes again, he had somehow appeared in a classroom. “Mengyao! I've come to save you!” Fragments of hazy memories flickered through his mind. A familiar, petite figure moved before his eyes. “Wait for me!” But in the end, he failed to save that girl... or did he? No! This time, he wouldn't let her go. This time, he would make up for every regret! This time, he would protect the person dearest to him! “I won't let you die, Mengyao! With my blood, I'll defy heaven itself and nourish a corpse with Sin Blood!” “Wake up, Mengyao!” “Big brother.” This time, Qin Xie successfully “brought Mengyao back to life.” And so began his daily corpse-nurturing routine, gradually raising his younger sister into the strongest Corpse King. Together, they would also eradicate every demon.