You said you hated men, why are your eyes now full of love? - Chapter 3 - Ridiculous, Not Violent Enough

A little ruffian who fought recklessly without any morals and bottomline accidentally time-traveled to parallel space and became a Key Case Investigation Team agent. The huge change in identity had him creating chaos in the police station. However, a strange miracle system helped him repeatedly solve mysterious cases, turning him into an impudent ruffian detective!

“Does the vengeance of justice count as a sin?”Fushimi Shika, burdened with a system, gives his answer: “Yes! But I will take on all sins!”Avengers chant his name, leaving behind his name. Thus, the world gains a notorious serial killer.A grieving father avenges his lost daughter by killing the true perpetrator;A husband takes revenge for his wife through a locked-room murder;A child who lost both parents makes a desperate gamble...Fushimi Shika shields these unfortunate souls who have lost everything, leaving his unique proclamation at the scene:“This is divine punishment, I am the divine punishment”...Years later, atop Tokyo Tower, Minamoto Tamako points a gun at her partner.“Although I don’t know how you did it, you are the mastermind!”Amidst thunder and lightning, rain pouring down, Fushimi Shika raises his hands:“How rude, Rabbit Officer, I am a messenger of justice.”

He died on the wedding of the girl he had a crush on, after a long and successful career. After convincing Yama to send him back to the world, he decides to fix the areas in which his life went wrong. Realizing the lack of love and romance in his past life, he sets out to conquer the hearts of various women.

- Description from Novelupdates

Chu Mu Yun relied on his story of 《Demon Realm》 to become a one-hit wonder in JJWXC, but the him who had written seven mental cases to abuse seven mental cases to death would never have expected that he himself would transmigrate into this shitty novel!
What the hell is this system on the bracelet?
And what the hell is this either propose to seven men, or suffer the taste of a tragic death experience under the hands of these seven people?
I just wanted to write a novel to satisfy my bad interests, who would actually want to get tangled up with a bunch of mad dog sad*st crazies?

- Description from Novelupdates