It wasn't until Akira stumbled upon one of Rina's video recordings - titled "Perverted Big Sister.mp4" - that she realized just how far her sister's behavior had gone. The video showed Rina... experimenting with her own desires, using Akira as a prop.
As she sat there, frozen in uncertainty, Akira couldn't help but wonder: what had happened to her sister, while she was away? And how was she going to navigate this new, complicated relationship?
Akira had always been a bit of a loner, preferring to focus on her studies and her own interests rather than socializing with her peers. But when her older sister, Rina, came home from a year abroad, Akira's life was turned upside down.
It wasn't until Akira stumbled upon one of Rina's video recordings - titled "Perverted Big Sister.mp4" - that she realized just how far her sister's behavior had gone. The video showed Rina... experimenting with her own desires, using Akira as a prop.
As she sat there, frozen in uncertainty, Akira couldn't help but wonder: what had happened to her sister, while she was away? And how was she going to navigate this new, complicated relationship?
Akira had always been a bit of a loner, preferring to focus on her studies and her own interests rather than socializing with her peers. But when her older sister, Rina, came home from a year abroad, Akira's life was turned upside down.