In A Fantasy World I Can Absorbs Abilities - Chapter 233 - Anger, Sorrow, And Resolve.

Glenn Hughes had spent most of his life confined to a hospital bed. Brilliant yet shackled by a cruel fate, he endured ten long years under the relentless weight of an unforgiving disease. Between medications, surgeries, and agonizing treatments, death had begun to seem less like an end and more like a mercy.But when he finally closed his eyes for the last time… rest did not come.The stench of sweat, dust, and blood was the first thing to greet him. Shackled, filthy, and drained of strength, his body was no longer his own. He was no longer in a hospital but in a cell. No longer a patient, but a prisoner.“What the… what the hell is this?”Glenn had been thrust into a world of steel and prana, reborn in the body of a condemned slave. Once a noble, now nothing more than a number among the damned.Yet, something was different. There was a reason he was still alive.Witness Glenn’s transformation as he is dragged through agony and ecstasy, suffering and desire, boundless pleasure and unrelenting torment—all while shouldering a burden so crushing that any other man would break.------------------------------------------------------------------------No netorare (NTR), no system, no incest, no consanguineous relationships.

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.

Based on the popular Vocaloid series, by HoneyWorks, called “Kokuhoku Yokou Renshuu (Confession Rehearsal)“:

Natsuki, a third-year at Sakuragaoka High School, who holds unrequited feelings for her childhood friend, Yuu, who’s in the Film Club. However, instead of being honest about her feelings, she makes him be her confession “rehearsal” partner. Unable to say her true feelings, things start to get complicated when Miou and Akari, who are also in the Art Club, get involved! Will she ever be able to confess for real!?

A mysterious natural phenomenon caused the Earth to be plunged into darkness. The world turned into an endless bloody chaos and mankind is on the brink of extinction…

Chu Yun Sheng, an ordinary white-collar worker, discovered his family heirloom book shining a bizarre light by accident. Out of curiosity, he tried to study the heirloom book.

After a long research, he still only understood a few symbols written in the ancient book. However, he was shocked when he figured out what messages the ancient book tried to tell him: the sun will disappear, and humanity is doomed…

He tried to spread the message, but no one believed him; his family and friends even tried to take him to see the psychiatrist. Eventually, he gave up telling anyone, but prepared for the apocalypse in secret.

Until one day– the sun really disappeared…

- Description from Novelupdates