My Brother's Temperature Is 35 Degrees

[Imprisoned by the yandere sister at the beginning] When he woke up, Su Yu found that he was locked with cold iron chains in a dark and humid basement. The person in front of him with a weird smile and crazy obsession in his eyes was actually his once innocent and lovely sister Su Yao. "Brother, you should never leave me." This sentence became the beginning of Su Yu's nightmare. During the day, Su Yao is a highly sought-after eldest lady in an aristocratic school with excellent academic performance; when night falls, she transforms into a demon who tortures her brother, using cruel means to enjoy the pleasure of controlling his life and death. Su Yu's resistance was gradually swallowed up by despair in the day after day of abuse. An accidental exposure put Su Yao in jail for a short time, but after she was released from prison, the demon in her heart became even more arrogant. The chains were locked again, and the torture intensified - this time, Su Yu's soul tempered the fangs of revenge in the darkness. When the prey is determined to bite back, the game inside and outside the cage will eventually be filled with blood and madness.