Kujibiki Tokushou: Musou Hāremu ken - Chapter 4

A mental patient, or a born policeman?

A peerless genius, or a master of crime?

There are cops who are least like cops, and there are criminals who are least like criminals.

Neither good nor evil is absolute.

It is a grey world we live in.

- Description from Novelupdates

The betrothal gift is two million bucks, not a single cent less. Jiang Yu is already eighteen years old and can get married now. Send the money to my card, and this matter is settled!" Jiang Yu looked at her mother, who was talking non-stop on the negotiation table. She watched as her mother named her price as she sold Jiang Yu. Jiang Yu could not believe it. Eighteen years ago, they brought the wrong baby home from the hospital, and Jiang Yu, the real daughter of a wealthy family, ended up in an orphanage until a year ago. Jiang Ran, the fake daughter of the Jiang family, grew up with a silver spoon in her mouth. With superior resources since she was young, she was more outstanding than Jiang Yu in every aspect and became the pride of the Jiang family. Jiang Yu, who wandered most of her time in the outside world, was nothing but a country bumpkin who made her mother a laughing stock in the socialite circle. However, Jiang Yu had no idea how great her mother's hatred for her was. On the day she turned eighteen, her mother 'sold' her with a named price. Jiang Yu said, "If you want to marry your daughter to someone else, it should be Jiang Ran. I'm your real daughter. You're the one who mistakenly brought Jiang Ran home!" Her mother replied, "Shut up. I wish I hadn't given birth to you. You've brought nothing but shame to me!" Jiang Ran said, "Big Sis, everything Mom does is for your own good. Don't blame Mom." Her mother said, "I'm convinced she's nothing but a debt collector who's come to me to collect her debts! Either you give me two million bucks, or you get married obediently!" Jiang Yu left home in despair. By a freak combination of factors, she found herself accidentally marrying a Mr. CEO. From then on, the thirty-year-old man pampered his eighteen-year-old wife to the heavens. The little girl said, "Mister, someone bullied your wife!" The man, "Which incompetent fool is so blind that he dares to bully you?"

Ryo Tanaka, a struggling college student, works tirelessly at multiple part-time jobs to make ends meet. In a bid to earn some extra cash, he volunteers for a paid drug research study, unaware that it will alter the course of his life forever.The experiment takes a disastrous turn, leaving Ryo bedridden with a high fever for several days. But when he finally awakens, he finds himself in a world plunged into chaos. A deadly virus has ravaged the city, turning its inhabitants into ravenous, flesh-eating zombies. Streets once bustling with life now lay desolate, the remnants of civilization crumbling under the weight of the apocalypse.

There is no master god, no system, no exchange, and some are just source codes that are fused in the mind to open up the world, not to be forced or suppressed, but to constantly go through in order to become powerful Look at my infinitely powerful source code …

- Description from uukanshu