MTL - The Divine Martial Stars - ~ 6, someone sue

The world changed the day that cracks appeared in the sky– suddenly monsters named『Demonic Beasts』appeared and began to rampage, attacking people.

Meanwhile, girls called『Magical Girls』began to appear to counter the demonic beasts. As they defeated the demonic beasts, gradually people’s lives gained a semblance of composure.

–but when there is light, there is also darkness.

In the corner of an alleyway, a boy who had been attacked by a demonic beast was dying. His voice begging for help did not reach anyone and his body refused to move.

「Boy. Do you want to be saved?」

Looking into the boy’s face, a black cat began to speak to him.

The boy nodded firmly to the devilishly sweet invitation, in response the black cat mocked him.

「Is that so—then I’ll【Haunt (Save)】you」

—on that day, a『Magical Girl』was born in a place that no-one knew.

『She』never laments, no matter what the future may bring.

Forty years ago, Gu Hai, transmigrated to a brand new world where the cultivation was no longer fiction but a reality. These are the tales of Gu Hai’s life since his arrival at the Chen Kingdom as he becomes the biggest merchant of six kingdoms.

Wen Er girl is unparalleled in beauty, but when people mention it, she has to sigh because she was born dumb. Unexpectedly, one day, the second girl Wen, who fell from the wall and hit Prince Jing’s body, suddenly spoke.

- Description from novelbuddy

All I ever wanted was for famous detectives like Sherlock Holmes or Arsène Lupin to appear in my dreams and share their wisdom. But instead, why am I hearing the voices of notorious serial killers in my head, guiding me to solve a string of mysterious cases?