Amazing Doctor With Super Vision - Chapter 617 - Killers with Tacit Understanding

As a promise, he went out into the world as an assassin. 3 years later, after becoming the Supreme Assassin, he gave up on everything he had and returned to the ranks of ordinary people. But one day, Kismet, a mystical game created by the National Research and Development had appeared.

The notorious imperial court lackey and the meritorious military general were well-known for their mutual dislike, a pair of arch-enemies set in stone. Who could have foreseen the unexpected change in the winds of heaven: the general injured on the battlefield, both legs disabled, and even forced by the emperor to marry his nemesis.  

With one marriage edict, two people with mutual hostility are forced to marry and live under the same roof. Yet after these long days together, they come to the realization that this fellow is not truly devoid of any saving grace/unattainable and high out of reach.

- Description from Novelupdates

“Come not between the Dragon and his Wrath.” — William Shakespeare The year was 2140, and Earth was nothing but a distant memory. Humanity now drifted through the galaxies aboard colossal ARKs, massive skyships that served as the last bastions of civilization. Yet, these ARKs were more than just floating cities; they were humanity’s last containers, preserving what remained of their species. A century before Earth’s final collapse, humanity discovered a gateway to a realm known as Eternia — a fantastical world straight out of myth and legend. Reaching this realm required more than just advanced technology; it demanded a complete departure from the physical body and entry into a mysterious process known as the Dream Weave. In the present day, Cloud lived aboard ARK NO. 427, where he had been training from a young age to step into the Dream Weave. He was a standout among his peers, excelling in every tasks that came his way. Everything seemed to be on track for him — until the pivotal day of the Class Selection process.

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