God Ash: Remnants of the fallen. - Chapter 705 Crimson Haze.

With divine medical skills in his left hand and supreme martial arts in his right, carrying a century of memories, he was reborn and returned to the city. This life, he vowed to dominate everything, take control of all, and ascend to the zenith of the heavens!

Chen Lun transmigrated to the year before the game’s public beta, becoming an NPC in the game world. Thus, a new version was born... Steam punk, Mysterious Objects, Church, Shelter, the pathways of the Sequences of the Seven True Gods... He placed his black top hat on his head, standing atop the ruins. Behind him stood the villain bosses from former game versions, the silent Nun Floey, Bloody Painter Noah, Swordsman Antonio, the delusional clown Alec... Chen Lun said, “Players grind monsters, I grind players, it makes perfect sense...” ... Also known as “How to Rationally Use Players as a Sustainable Resource,” “These Bosses Are Really Strong But They Are All My Underlings,” “No Way! So I Can Be A Deity, Too?!”

What will happen when a wild, arrogant, and cold secret agent crosses over to the body of a weak and timid young miss of an aristocratic family?

She, Chu Ye, is the CIA agent who grabbed the outstanding title of “Agent 007” after the death of Qian Xie. However, she fell in love with the enemy during a murder mission and died for love.

She, Boling Yili, is the seventh young miss of the Boling family, the greatest aristocratic family of the Eastern Nation, but because of her natural timidity and cowardice and her inability to become a sorcerer, she was regarded by the family as a disgrace and was exiled to a small remote town, where she supposedly died due to suicide and drowned in a pond.

When matters are left unsettled, the heart and body will almost thirst for blood, longing for the wildness and madness and even undergoing change to the point of blurring the fine line between life and death. From the moment Boling Yili’s body was reborn, the Wu Man Continent better wait for they will witness what it means for the sky and the earth to turn upside down!

- Description from Novelupdates

Perhaps it is the choice of fate. As a senior otaku, Qian Lingfeng got the “steel shell system”. However, when he swept the world with the system, became a local rich man, made all kinds of beautiful women, opened a harem, and realized the ultimate fantasy of thousands of otaku, he found that things seemed far from simple!
When the end comes, biochemical zombies suddenly come down, fierce beasts are in power, bloodthirsty zerg roam to kill the world, and human lives are comparable to dirt. Where will weak human beings go in this world? Is humanity going to be extinct? Or … can an otaku save the fate of the human race?

- Description from Novelupdates