A Record of Ash & Ruin: The Grieving Lands - Chapter 2Book 3: : Testament

This legend tells the tale of the protagonist, Kuroki summoned to protect the demon king from the hero.

Kuroki, unbeknownst to him, suddenly came to another world. He was summoned by the demon king, Modes. The territory which the demon king overrules was in the midst of being destroyed because of the hero. He had no choice but to bow before Kuroki.

“Please save us, Savior Dono!”

Kuroki nodded, deciding to save the demon king due to an unexpected turn of event.

Genius Neurosurgeon Lǐ Xīnyuàn died while being held at the gunpoint to perform a surgery on a terrorist leader.When he opened his eyes, he had transmigrated into a world similar to a Webnovel he'd been forced to read by a colleague.Now you'd think Lǐ Xīnyuàn had transmigrated into that Webnovel. But did he?No! Instead he'd been transmigrated into that webnovel's spin-off/“what-if” version of the story with nothing but the superficial knowledge of the plot thanks to reading the main novel.Now tasked with the mission of avoiding plotholes, unnecessary dog-blood, death and following the storyline to ensure the male lead's ascension to the throne of Supreme Emperor, he didn't know whether to laugh or cry.And why did no one tell him that his character had to be married into the Male Lead's harem??What about the Female Lead?Later:Lǐ Xīnyuàn: Why doesn't Your Highness spend the night with concubine Yang?ML: Don't want to.Lǐ Xīnyuàn: ... Why?ML: Are you pushing me away?Lǐ Xīnyuàn: QAQ

By coincidence, Li Yunmu found a super machine from humanity’s age of darkness. From that point onwards, his ordinary life would never be the same! Aptitude? Innate talent? What are these? Could they be eaten?

I have neither aptitude nor innate skill, but my shadow can level up using hacks. Experience, Ability points, battle prowess… all of them could be hacked. Even while he is asleep or tired, he could still increase his skills.

- Description from Novelupdates