Ryuu Kusari no Ori -Kokoro no Uchi no “Kokoro”- - [LN] Volume 4 Side Story 1

Have you ever thought about how your life would turn out at the age of 18?Well before I could even say that I was an adult to even say I was going to conquer it.The world had seemed to already be determined of what mine and the rest of humanity would be when the first Leviathans was made public to our world.

[Congratulations! The system will guide you to find a handsome and kind husband in the apocalypse!]After being killed by the demon king, the demon queen had a second chance to live in the body of a woman in the apocalyptic world, Medeia Vega.Their planet has apparently been hit by cosmic radiation, causing living things to mutate and develop unique abilities.People with weak mental states couldn't keep their humanity and turned into monsters, while the survivors had to fight those monsters endlessly to stay alive.Her main mission in that world was to find a kind-hearted husband, but it just so happened that Medeia also built a safe haven for people.Would she be able to find the man of her dreams in the apocalypse?————[Before dating a kind hearted man, you should also have a pure heart!]“Fuck.”[Foul language detected! Penalty minus 20 points!]“Damn you—”[Foul language detected! Penalty minus 30 points!]“You shitty system, how dare you keep reducing my point?! I hope you rot in hell, you bastard!”[Foul language detected! Bad curse detected! Penalty minus 100 points!!!]

He said coolly: “One million a month, stay with me!” She raised her eyebrows and smiled: “Pay a 30% deposit first, no credit!” Show no mercy. When the contract expired, she turned around gracefully, and when he chased after her, she found that there was already a kid the size of a kid beside her…

- Description from novelbuddy

He is an undead who is devoid of all humanity, he is the one and only supreme overlord, he is a man who has severe mysophobia.

There are many people who try to act cool in front of him, whatever soldier king, assassin, system user, transmigrator, reincarnator, the strong returning, the strong coming down from the mountain, person coming back from the immortal world, reincarnation of the devil king, immortal emperor possessing someone’s body, and so on, all of them do not know what will happen next

- Description from Novelupdates