MTL - Deep Sea Survival: Start a Submarine (Deep Ocean Survival: A Submarine From The Start) - Chapter 5 into the water

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

She was forced by her husband and his mistress to jump into the sea and commit suicide, only to be rescued and taken care of by the jerk's uncle for seven years.

The handsome, skilled newbie livestreamer, Ji Zhiyao, has a dream.

“So, you have been lying to me all this time?”She raised her head and realized that the face of her senior brother, one who she knew so well, was unfamiliar and scary.“What are you talking about?” Her senior brother scoffed and shook his finger. “All I can say is that none of you knew who I really am.”He then turned around and walked towards the Sky Throne, a symbol of absolute power.Master Sword Aura, Sea of Flame, Star Light…The dozens of skills that were used to stop the man from approaching the Sky Throne simply bounced off him. All the skills simply vanished into thin air.“No!” Xu Yingling bit her lip and turned to look at An Zhisu and Shi Liuli.They exchanged glances. All the despair, sadness, fear, and even love, were now meaningless. The only thing that was important at the moment was to stop that man.…A cultivation novel. The main character used his cheat ability, Time Travel, to secretly live among all the powerful sects while learning their skills. He eventually managed to gain the power to approach the Sky Throne and become an immortal.However, it seemed that things weren’t going as smoothly as he had planned…”