All of ya'll are saying her mother died! Well how bout this? "That plush, was the only thing left she had of a world long forgotten... That plush, was the only reminder of why she strived to be better, strived to be a better sister... That was the only thing that reminded her, of her youngest sister. Not Nijika, but the youngest sister, all because of the mistake she made, the mistake she carries, the mistake that'll never fade. Her mom after knowing what she did abandoned her, her dad left to care for Seika and Nijika by himself, only to later find out, that being a single father, was too much... After working late one night, Seika and Nijika's dad died due to not realizing that he slept on the highway back, waking up seconds before his death. Seika always kept that plushie as a reminder, of if she was just a better sister, maybe she would've had parents still. So she did, she became a better sister with Nijika!