My Brother's Body Temperature Is 35 Degrees

[Imprisoned by His Yandere Younger Sister from the Start]

When Su Yu awoke, he found himself chained to a cold iron ring in a dark, damp basement. The person before him, wearing a strange smile and gazing at him with crazed obsession, was none other than his once innocent and sweet younger sister, Su Yao.

“Big brother, you'll never leave me.”

Those words marked the beginning of Su Yu's nightmare. By day, Su Yao was a top student at an elite school, a popular young lady admired by all. When night fell, she became a devil who tormented her brother, savoring the thrill of controlling his life and death through cruel means. Day after day, Su Yu's resistance was swallowed by despair under her abuse.

An accidental exposure led to Su Yao's brief imprisonment, but after her release, the demon in her heart grew even more unrestrained. The chains tightened once more, and the abuse grew worse. This time, in the darkness, Su Yu's soul forged fangs of revenge. When the prey resolves to strike back, the struggle inside and outside the cage is sure to end in blood and madness.