MTL - Quest Master of Konoha - Chapter 455 At the end of the war

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

Having lived a normal life all his life and died without being able to fulfill his desire and when he’s given a task by a god, watch how he takes the protagonists girls while making it hard for the hero.

Life in hell mode was never fun? Was it?***********Being burned alive in a laboratory out of sheer jealousy for he had created the best AI system in the medical world? Oh boy, Damien could assure you that it was not fun. But then again, you never get another chance to feel the slow burn—okay that went dark quickly.Lets take it from the top once again.Damien was sure he had angered someone up in the sky and given his foul mouth that hurled curses worse than a sailor he had very good idea of how it happened.Because if being abandoned in the orphanage was not bad enough, he was stabbed by the very mentor he trusted and followed with closed eyes.But when he found himself waking up in another world— even after death he was not left alone. SMH.The world of beastmen —— he realised that he never knew how difficult hell mode truly was.Surviving in the world of beasts was a challenge in itself.And for Damien who found himself in the body of the discarded crown prince of the Brystoria Empire—With a broken nucleus and mana suppressed by Tartarite nails and used as a weapon of humiliation, it was not a challenge.For Damien, survival in the beast world was like walking on a thin rope, that too on one foot!Fortunately, the AI system that Damien developed as a doctor before his death followed him to this world of beasts. Join Damien in his new quest as he overturns his destiny from being a slave to the king of beasts.

Read at least six chapters, then prepare to crave the rest.The main character will show up in Chapter Five, though I don't recommend skipping the first four chapters.-----The world was celebrating. The Demon King was dead, along with his Darkness Generals.Humans led the other races to war for subjugation. They killed all, and none were spared. However, thousands of years before this happened, a piece of history was altered by time itself. In fact, the Demon King didn't have four generals but only one, which he sealed and sent into eternal slumber. Just as he started to close his eyes, the chains locked away for eternity shattered into pieces.