My Yandere Sister's Basement: This Time, It's My Turn, Sis

[Yandere, love and hate, corruption, forced love, intense push and pull]

Lin Wan has always thought that her adopted younger sister, Lin Ci, is the biggest stain on her life.

She drinks, gets into fights, stays out all night, and always has ambiguous red marks on her neck. The look she gives Lin Wan is sinister and wanton.

Then one night, Lin Wan pins Lin Ci, covered in blood, against the bathroom tiles as cold water washes over her far-from-innocent body.

“Lin Ci, you're filthy. Would you sell anything for money?”

Lin Ci smiles with tragic allure, her fingertip brushing her sister's trembling lips. “That's right, Sis. I'm expensive...”

Lin Wan doesn't know that Lin Ci nearly lost the use of one hand that night, taking a cleaver meant for her from loan sharks.

Lin Wan knows even less that every bit of “dirty money” Lin Ci brings home is a lifeline keeping the company afloat.

When the truth is torn open, Lin Ci, who has always held herself back, finally “breaks.”

Golden shackles clasp around Lin Wan's ankles. Her once-humble, eager-to-please little sister calmly unbuttons her shirt, her eyes full of crazed possessiveness.

“Since you can't protect yourself, Sis, let me lock you up and keep you as my own little canary. How about it?”