Fuck your step-sister from the same father but different mother

The story takes place on a beautiful morning, the lovely younger sister Sena goes to wake up her half-brother from another mother to have breakfast. Ironically, at that moment, she unintentionally sees his erect penis, being a student of age, curiosity and desire naturally arise, thinking that he is deeply asleep and unaware, she boldly peeks at his private part - something she has always wanted to explore.

But at that moment, he wakes up in surprise, with a bewildered expression on his face. This is the main reason why things start to take an unexpected turn, the two siblings continuously hide from their parents to engage in incestuous relationships - actions that help satisfy the sexual needs of both young students.