Seven Deadly Sins System - Chapter 14: Blood Demon Body, Heart Seal

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

Due to an unexpected turn of events, Xia Fei consumed a Super Gene Optimization Fluid that bore no brand, expiry date, instructions or stated its place of origin.
Our story begins here…

Lives are a currency, and Noah Vines is rich.Reincarnated into the body of a poisoned magic school professor, Noah is given more than just a second chance at life. Every time he dies, his body reforms. With infinite variations of runic magic to discover and with death as a painful soul wound rather than a final end, Noah finally has a chance to wander the lands of the living once again. And this time, he plans to get strong enough to make sure that he never has to wait around in the afterlife again.

“Don't worry, dear. I won't let him touch my body even if I am forced to marry him. My love and my body will always be yours only. I am doing this to protect us. Please wait for me till I find a way out of this.”“Of course...I will wait for you...I trust you...” This poignant moment captures the profound love between a couple bound by their hearts. Yet, what unfolds when the man discovers his beloved has been ensnared in a trap she can never escape? What if his cherished woman is being manipulated by another man, unbeknownst to him? What if, while he sleeps, she is being ravaged by multiple men? The central question remains: Will her love for him endure, or will she be consumed by the abyss of corruption and lust? Dive into NTR Sagas, a collection of the most heart-wrenching and dark NTR stories, and explore the depths of human emotions in the face of betrayal and desire.