AI Doctor : From Slave to Beast King - Chapter 13: Locked in dungeons

Humbra bleeds, devastated by an unrelenting race for survival against the Leirions—powerful monsters intoxicated by their bloodlust. Amidst this chaos, a young orphan, haunted by his brutal past, discovers he is the catalyst to a greater future—a future far darker than he could ever imagine.This is Leonard, a boy whose destiny entwines with ancient secrets, betrayals beyond reckoning, and a world-shattering rage.Humanity already struggles on the edge of the abyss. The light of hope has long been extinguished, ushering in the darkness and heralding echoes of lament... But from this despair, a new hope flickers: the Neumonds, wielders of powers that transcend life and death. Are they saviors... or harbingers of a final, devastating curse?Will Leonard save them all... or will his desire for vengeance end in a valiant death?

Oscar, a destitute young boy, died in a tragic accident and was reborn in the forgotten realm. As a member of the lowly Birch tribe, his solace comes from the fragments of a guardian's spirit, residing in his soul. After the decimation of his family in the hands of a powerful race known as the dreads, he embarked on the part of revenge, leading him to the path of transcendence.

Utsuro no Hako to Zero no Maria, or The Empty Box and The Zeroth Maria, tells the sinister story of Kazuki Hoshino, who is almost madly attached to his everyday life, and his antagonist Aya Otonashi, who suddenly transfers into his class—for the 13,118th time. She majestically announces to “break” him, without paying heed to anyone else around them.

“I can clear all your debts, but you have to substitute me in my marriage…”

When Liang Dou Kou was diagnosed with cancer, she formed a contract with Qin Zhi Ai to substitute her in the time she would be absent, including her marriage with Gu Yu Sheng.

Initially, Qin Zhi Ai suffered under the cold and harsh attitude of Gu Yu Sheng, who mistook her for Liang Dou Kou. But his heart gradually softened and he fell in love with her.

Just when he thought that he could live happily ever after with her, it is time for Qin Zhi Ai and Liang Dou Kou to revert their identities, and Qin Zhi Ai evaporated from Gu Yu Sheng’s life.

Months later, Gu Yu Sheng meets someone who possesses the gaze of Qin Zhi Ai who captured his heart…

- Description from Novelupdates