Lord Yan, The Little Ancestor Has Fallen Off The Horse Again! - Chapter 110 Year-End Exam

Long Fei, a cross-timer and doujin, is an otaku who traveled to another world. In the original world, he was an otaku fan of Gundam and military science fiction.

He died in an accident and was reincarnated into another world. The Gundam works he had read before his death and the techniques in various military novels could be brought to another world.

How would he use the Gundam that Long Fei created? What waves can be caused in this different world?

- Description from novelbuddy

The formless ancient world was infested with despicable demons. They hunted and feasted on mankind, keeping the human civilization constantly in a weak and suppressed state.

During the first known year, a magical mountain descended into the world from the realm of the Gods. Carved on this enormous mountain was a message: ‘Heaven Prevails’…

After the Grand Descent, a name that was given to the descending of the mountain, the Three Great Sages made their ways to Mystic Mountain where they learned to harvest what we now call magic, establishing the Mystic Cults and eighty-one sacred shrines to help aid mankind with the cult’s mystic powers against the eternal fight to the death with demons.

- Description from Novelupdates

Plagued with Prosopagnosia, Making friends or lovers was the last thing in Yujin's reach and on Yujin's list, after all, when the dream is to be the Strongest Being in the world, love doesn't even register, yes?

“W-wait... what's this? I am... Eugene? The same guy from that Eroge!?”

Unable to remember faces at all, will the petty villain in the Eroge be able to keep his dream of being the strongest in the world?

“Eugene...”

Or will this Eroge bring his chastity under threat?

A Steamy Erotic Comedy of the Strongest Person like none other begins now!

When encountering demons, a young man with two horns on his head, red hair reaching his waist, and an extremely handsome appearance leads the demons to the front.

Youdou: Actually, I really don’t want to be a master of monsters. This profession is completely useless. My ideal is to become a magic stick…, bah, it’s to become a great onmyoji.

All the monsters: My lord, wake up, you are the leader of the monsters yourself!

- Description from novelbuddy