BTTH: I married Xun'er, but she refuses to consummate our marriage! - Chapter 344: Desperate Struggle!

There was once an immortal cultivator fighting for the fate of human beings. Unfortunately, he failed that time; but fortunately got another chance as he was reborn once more as a human, on the earth of 5,000 years ago. With a second chance, he not only would embark on the road of saving all mankind, but also would retrieve his human nature on the new journey that would last for 5,000 years.

- Description from Novelupdates

This is a story of a man named Kim Sae-Jin, who one day, inexplicably wakes up as a Monster. Follow him and his perilous journey to get his life back as a Human, all the while growing even more versatile as a Monster in the process. This should be… complicated, somewhat.

Masterpieces such as 'The Divine Comedy', 'The Theory of Evolution', 'Encyclopaedia Britannica', 'The Theory of Relativity'...Born in the history of human civilization, possess mysterious and magical powers in another world!Original sin, biological evolution, mastery of all arts...By reading the secret tomes, one can gain a variety of powers!The only trouble for the people of the other world is that they find it difficult to understand the texts from Earth.At this time, there comes a librarian from Earth...

As a villainous demonic cultivator, isn’t it perfectly normal to take a fox demoness as a spiritual pet?As a villainous junior brother, isn’t it reasonable to make the cold and stunning senior sister reveal a shy side?As a villainous disciple, isn’t it my duty to melt the icy heart of my villainous master and save her from the abyss of corruption?…I was wrong.After they fell to darkness, they captured me and ruthlessly “repaid” their gratitude.