The Rational Detective in Detective Conan - Chapter 7: The Double-Crossing Detective

High school student Mikoshiba Ryouma was summoned to a different world in the middle of a war. Sensing the malice from the one who summoned him (a summoner of the O’ltormea empire), he uses his martial arts to run away, killing important people of the empire during his escape. After the escape, he rescues two twin sisters from the hands of thieves. The sisters who can use magic, swear to serve him as subordinates. Thus, Ryouma begins his journey on the path of the supreme ruler.

The first great emperor in the world was betrayed by his confidante and perished. Millions of years later, the great emperor’s soul returned and was reborn as Ye Yan, the son-in-law who was kicked out by the Chu family with a letter of divorce, restarting the supreme journey. Open the gate of immortality, kill the Jiuzhongtian, and cast an invincible name again!

- Description from novelbuddy

Poisoned by his wife, betrayed by his best friend, and abandoned by his children—Matthew died broken and alone. But when he wakes up thirty years in the past, trapped in his eighteen-year-old body, everything changes.Now, the halls feel haunted, memories from a future that may never come keep popping into his head, and something strange is growing inside him—something he can’t explain. Sadly, this second chance isn’t a blessing. It comes with a price.But this time, he won’t be the victim. This time, he’s the one in control.

“Those who defy the heavens must be prepared to pay the price.”Zhu Rong dared to forge a divine grade weapon in the mortal world, an act the heavens deemed a challenge to their authority.In response, the tribulation descended with fury, striking him down and ending his life in a blaze of divine wrath.But death was not the end.In the moment his soul scattered, he awoke once more... in the body of his 17 year old self.With his memories intact and the mistakes of his past laid bare, Zhu Rong is granted a second chance, to repair the regrets that once shackled his heart, to reclaim the strength he once lost, and to finish the masterpiece that cost him everything.This time, he will forge his legend anew.And this time, not even the heavens will dare to stand in his way.