AnalogHorror: Rule Kaidan 4016 - Chapter 2 - 1 Student Code_

Yuki, a high school junior, dies heroically saving a stranger and is reincarnated in a fantasy world, where he discovers an extraordinary and unrivaled power.

Above the Great Wilderness, there are many sects, and a hundred schools are in full bloom. Not only the three clans of humans, demons and monsters, but also the four unifications of Buddhism, Demons, Taoism and Confucianism.

Ordinary kid Liang Yan, because of a great change in a heavenly bead, embarked on a turbulent fairy path. Since then, he has experienced ups and downs for several times.

Qingshan flute Ren Pingsheng, a fairy in wine with a gourd and sword!

- 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

Hanazawa Hanako was a young otaku girl, technically a hikikomori, a degenerate, and a netizen. She died though. (LOL)So naturally she got yeeted to a fantasy world to save it from the demon king.When asked what buff she want: “Just give me the whole Internet then.”