The Villainess Whom I Had Served for 13 Years Has Fallen - Chapter 179:

ps: The 2019 new book “Return to Eighteen Boys” is already fat! !

An Feng, a mediocre clerk, obtained super technology and wealth by chance and coincidence. With the ultimate goal of making (cheat) money by manufacturing next-generation man-made diamonds, he traveled across the ocean and dealt with the American people. A series of stories about pursuing dreams, pursuing freedom and changing lives happened.

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- Description from novelbuddy

However, he did not know that he was not raising just a harmless pet, but a biological weapon secretly made by the government… a real monster.

As a former librarian, Rand felt that he had been living an ordinary life, the one that he had reclaimed unconsciously every single day.

Recently, he has been a little upset because the pet fish he accidently brought home to raised seems to have undergo some strange changes

Well, it turned into a merman.

- Description from Novelupdates

[I was reincarnated as an F-class Hunter.

…it’s a problem because they don’t treat me that way.]

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