Divine Luck: SSS-Rank Battle Maid Harem - Chapter 34: Stay Or Go

A tale of an ordinary senior high school student who becomes a legend by dispensing plagues and controlling vicious virus insects.

In the year 1368, at the end of July, deep crimson shall descend from the heavens.

- Description from Novelupdates

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