Kami-sama no Memochou - Volume 9, Chapter 7

God plucked one of his creations from his first Earth and gave him a second chance in another one of his Earths...surprise it is in DxD! Now reincarnated as a perverted side character how will our poor protagonist handle his new identity? Well he probably wont make the choices you will want him to, that's for sure!

Qin Tian accidentally transmigrated into a sickly body, a body with broken Dantian that was unable to practice Qigong, in another world. Fortunately, God had mercy on him by giving him a level up system. Useless? That was him in the past. Not worrying about practicing Qigong, he was now able to kill Monsters to level up. Easy! Level up when killing Monsters; level up when killing people. An unbeatable sovereign of the clan in the eyes of other people, but in his eyes, he is a glittering big BOSS.

This is an era of national miracles and national adventures.

A gray fog swept the world.

Ghosts, ghosts, ancient gods, extraordinary races, etc., are all over the gray fog.

There are dangers and miracles.

Some items and even creatures invaded by the power of gray fog are called miracles.

Some miracle items can generate ore every day, which is inexhaustible.

Some miracle items can make people stronger even if they lie still every day.

And some, it is possible to create extraordinary warriors in batches.

Bai Ye came through, with a golden finger that could see all the prompts, and got a fire source at the beginning…

- Description from novelbuddy

No NTR, No Yuri, only pure harem, endless lemons, squirts, moans, and shameless leveling up!“Holy shit… did my hentai just crash Japan?”Kaito Arisaka is a brilliant coder with a dirty secret: he’s obsessed with hentai. One careless mistake changes everything: he accidentally uploads his corrupted hentai succubus game to Japan’s government servers. Fired instantly, he expects ruin however within an hour, the game goes viral, crashing the Internet with millions of downloads per second and making him filthy richThe morning after, Kaito wakes up trapped inside his own game, surrounded by lustful succubi, yandere waifus, and endless temptation. That’s when he realizes he has unlocked the game’s built-in SSS Lewd Skill System. Unlike ordinary systems that grant cultivation or combat powers, the system teaches him how to be lewd, shameless and level up through it's 3 principles: Sex, Squirt and Scream.To unlock new lewd skills, he must get to the top tier of every level and that means more sex, more cum, and more squirts, all translating directly into EXP and more game currency for him.Can this hentai-obsessed coder survive… and dominate his harem game to become the ultimate Incubus God?