MTL - Fei Pin Ying Qiang - Chapter 37 Kill the enemy

Crossing to One Piece world, he became Roger’s younger brother.

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

Usually when you possess a novel, you start in the city, but I fell into the forest.