The Undead King of the Palace of Darkness (WN) - Chapter 9: The Weakness

Indra (5) grew up in her family while being shunned and ostracized. When she regained the memories of her previous life, she decided to run away from home and thus trained herself to absurdity.

During her training, she encountered the young adventurer Sword, who looked just like a middle-aged guy. Worrying about the impertinent, eccentric, pointlessly strong young girl, Sword invited her to go on a journey with him.

“The lifespan of a butterfly is between three days and a month, and most butterflies only live for a week.”
“Like them, I have only a few months to live, maybe less.”

–

The first time Hu Die met Jing Yu, he thought she was a world-weary girl who committed suicide.
The second time they met, he told Hu Die indifferently: “If you jump down again today, I’m not saving you again.”
Later, she told him: “Jing Yu, don’t feel sorry for me.”

Later, Jing Yu returned to the arena and won the glory that belonged to him.
Under the flashing lights, he suddenly remembered the girl’s voice, and said a nonsensical remark in front of thousands of people.

——”I’m not sad, I just think that at such a moment, it would be better if you’re here.”

“He is a whale swimming in the ocean. One day, a butterfly inadvertently broke into his frequency. That was the most beautiful moment in his life.”

- Description from Novelupdates

The world that nurtured the civilization which reached the pinnacle of magic was on the verge of destruction.
The last survivor transmigrated to the past, when the magic civilization started growing, as countless mages were still fumbling their ways through the thorny paths of magic knowledge.
He, who came from the end of the magic era, aim to reach the pinnacle of magic.

- Description from Novelupdates

Genius Female Forensic Scientist VS Tough Criminal Police Captain[Mystery + Detective + Sweet Romance + High-IQ Crime + Serial Killings + Psychological Profiling + Suitable for the Faint-hearted]Schizophrenia, antisocial personality disorder, high-IQ crimes… This is a world where psychopaths run rampant.The Cat Fetus Case, the Lovers’ Butcher, the Angel of Death… Evil delusions always invade reality, accompanied by violence.Their First Meeting:Mu Mian asked very sincerely, “Hello, would you be willing to donate your body to me after you die?”Later:Fang Rui: “If I fell into the water along with a victim’s corpse, which one would you save first?”Mu Mian: “You!”Fang Rui looked at her with some surprise.Mu Mian: “Because the corpse will float by itself~”