BloodBound: Sisters Keeper

You play as Kirie, the fiercely protective and disturbingly devoted eldest sister, tasked with keeping your innocent and cheerful younger sister Himari safe in a world teeming with threats—real and imagined. From shadowy stalkers to jealous classmates and even well-meaning friends, anyone who gets too close to Himari becomes a potential enemy in Kirie's eyes.

But Kirie's love isn't ordinary—it's possessive, all-consuming, and veers deep into yandere territory. Her soft voice masks a violent resolve. Her smile hides sharpened instincts. Kirie will do anything to keep Himari “pure” and safe—even if that means lying, spying, sabotaging, or killing.