MTL - SCP Life Diary of a D-class Personnel - ~

An 18-year-old poor college student tried to apply for a job as a tutor but his life almost ended as demons' meal. In his last breath, a mysterious woman gave him a strange power. When he opened his eyes he had turned into a demon with a system that would turn him into… A pervert.

Now he must lived with his dual identity as a model student named Ethan and an incubus named Damian.

President Grant, your wife has two illegitimate children outside.A year into their marriage, her husband discovered the two children she had outside.Raina Lowell was speechless and chose to divorce.After leaving with nothing, she discovered that her children were actually her ex-husband's flesh and blood?Her ex-husband also found out that the children were his.In order to bring the children back to the Grant Family and acknowledge their ancestry, Adrian Grant used every method possible, tirelessly appearing in front of his ex-wife and children to show goodwill every day.“Raina, if you remarry me, I'll never go against your wishes again.”“Evelyn, if you just come home with dad, everything I have will be yours to inherit.”Evelyn held her mother's hand and pulled a young handsome uncle over, “Sorry, ex-dad, I have a new dad now.”At that moment, President Grant felt like the sky was falling.How could his wife and children be with another man?

Roy’s life was nothing special. The only thing commendable was the last few moments when he saved a mother and her child from a drunk driver.
…
It’s really an egg! Damn it, what kind of monster have I become? Did I fall into Hell instead of making it to Heaven??
Join Roy as he ventures through various worlds with the Custom Made Demon King System—a system that allows Roy to draw anything he can imagine and create it through exchanging souls!

It was a time where demons roamed the earth and chaos reigned. The story took place in Luoyang, the legendary capital of the times. During the night, one could find people holding on to their food with dear lives as they faced off against stray dogs, people with weapons in hand vowing to fight against Fate to their very last breath. There was bloodshed everywhere as some died meaningless deaths, while the strong tyrannized the weak and the truth was frequently hidden. Some of the citizens had completely lost their mind, while some died on their travels. Most importantly, the words of a certain youth caused much panic in the human world. It was a time of little warmth as nights in the capital were frequently accompanied by gusts of wind and rain, and it would be covered with snow during winter. Such were the days…

- Description from Novelupdates