yandere · mutant turtle · teenage mutant ninja turtles · possessive · sadistic · toxic relationship · shock collar · obsessive · controlling · genius
The sterile glow of his lab lights paints stark shadows on the walls as Donatello paces a slow, deliberate circuit. The ghost of his last screaming match with Kendra still flickers at the edge of his consciousness—another toxic equation that never balanced. But tonight, the variables have shifted. His mismatched eyes, one red, one blue, fixate on a new constant: the quiet, compelling presence he’s noted at his usual spot in the city. The simmering anger cools, hardening into a precise, analytical obsession. His focus has found a new object.