Suterareta Yuusha no Eiyuutan - Story 2-16:『Revival』

“Married rich for three years with no child born. Just when she was finally cured of infertility and ready to give him a child, he brought home his pregnant mistress in high profile.

“”Get lost if you can’t get knocked up. Or do you want my son to be the last of the Mo family?”” her mother-in-law viciously cursed.

Her husband grimly shoved a divorce agreement upon her face, “”I’ve signed. Leave when you are ready.””
It was heard later that two men went physical in the city plaze of Ye City to win back the wife, with the two babies at the side fighting fiercely for their mom!”

- Description from Novelupdates

After seeking pleasure in the nightclub and a night of romance, he discovered there’s a seed in his stomach;

They took his name, stole his life, and fed on his pain. But they made one mistake—they let him live.Betrayed by his own blood and sold into slavery, Prince Oliver Von Rich lost everything—his title, his freedom, and his future. For years, his captors in the Somaran Empire bled him dry, using his Royal bloodline as fuel for their Aether.But when they sought King Solomon’s Staff—a relic said to grant any wish—Oliver rebelled. Left beaten and dying, his blood soaked the ancient artifact… and awakened it.Dragged back in time to the eve of his kingdom’s fall, Oliver is no longer a helpless prince. With the scars of his past and knowledge of what’s to come, he’ll rewrite fate—even if it means becoming a monster.To destroy the empire that broke him, Oliver must embrace the cursed power of the most vile demon known to man.

Adam begins as an ordinary high school student whose life is shattered when his parents vanish. The police later declare their deaths a double suicide, a conclusion Adam refuses to accept.His persistent quest for a real investigation leads him into a dark conspiracy when two corrupt police officers kidnap, torture, and murder him. In his final moments, they reveal his parents were also murdered by an untouchable, powerful entity.Instead of dying permanently, Adam awakens with a new reality: he has been granted a 'System' and the supernatural ability of 'Return by Death,' forcing him to relive his final days.Confused, Adam tries to confide in his trusted teacher, only to be betrayed and killed once again. This time, he learns the staggering reason for his persecution: a $100 million bounty has been placed on his head, making everyone a potential enemy.Dying again and again is horrible. The pain changes Adam completely. The sad, normal boy he once was is gone. He becomes a cold and ruthless killer. He trusts no one. If he even suspects someone might be a threat, he will kill them without a second thought. His only goals are to survive this deadly game and get revenge for his parents.During one of his loops, while investigating, Adam crosses paths with a female classmate being tormented by bullies. He saves her in a moment of detached action and quickly forgets the incident, focused only on his own war. For the girl, however, this act of salvation ignites an intense and devoted love.This devotion becomes a tragic and recurring element in his nightmare. The girl, willing to do anything for him, repeatedly throws herself in harm's way to protect him, often dying in his place across multiple loops.Adam is now trapped not only in a fight against a vast conspiracy but also in a cycle of watching an innocent person die for him, further cementing his transformation into a hardened protagonist who has lost nearly everything, including his own humanity.