Sister Tyrant: Breaking Elder Sister

Synopsis

Ryou, a weak-willed younger brother, is constantly bullied by his perfect older sister Iori, who excels at both studying and housework.

One day, while searching for leverage in Iori’s room, Ryou discovers her diary containing shocking contents—descriptions of himself forcing his sister to kneel and serve him like an animal.

“Does sister have a masochistic desire to be violated by me…?”

When Iori returns home, Ryou uses the diary to blackmail her. But she responds with defiant insults. Ryou’s accumulated stress and the perverted fantasies described in the diary explode in his mind. He finally pins down Iori and begins to toy with her body through assault and training.

Their father won’t return for 14 more days.

For 14 days, Ryou can do whatever he wants with Iori. Now it begins…