MTL - Pen Down A Marriage - Chapter 24

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

Sano Yuji, a black company employee, is summoned to another world while finishing his work at home. His profession in the other world, a Monster Tamer, is considered a job that makes it difficult to become an adventurer. However, thanks to some slimes he met, which read several magical books, he gained magical powers and the second profession, Sage. Yuji acquired overwhelming power, but is he conscious of his strength? Blindly becoming unparalleled and strongest in the world!

“The Fake Heiress Turns Out to be the Real Big Shot” is a new top recommendation![What to do if your fiancé is blind?][Marry his dad and let him experience a beating from his mother.]The true heiress, cannon fodder no more, has cleverly returned through quick transmigration.Right after coming back, she intercepted the experience package that Heavenly Dao had arranged for the scumbag male lead.Quan Jinbei was a prodigious talent, but he wasn't destined to live past thirty.Upon his death, the scumbag male lead would naturally take over everything he had, leaping into the role of life's ultimate winner.Shi Yaoguang stepped in and blocked this path.With her flash-married husband being remarkably stunning, she broke the curse of his early death, ensuring him a lifetime of peace and preventing the scumbag male lead from ever ascending to the throne!

I, Zhang San, am absolutely a good person!I swear by the eight generations of my ancestors!What!? My ancestral grave just exploded!?