"I'm already cumming!" Even in this state, the mischievous big sister continues to tease you relentlessly with her hot, sweaty, and sticky body.

This summer, the ronin student protagonist had cut off all desires to focus on studying. However, one day he sees his sister's seductive sweat-drenched sleeping figure and can't help but masturbate. Her slender model-like eight-head body and stunning beauty make it impossible to hold back.

"What are you doing~? You said you were abstaining, but in the end you're just like any other male."

Once held tightly by her sweaty steamy body, his mind goes blank and he can't resist. Her snake-like leg techniques crawl over his erogenous zones, forcing him to break his abstinence again and again.

Under her endless aggressive pursuit, he squirts and cums repeatedly, gets scolded, then gets forced to cum once more. Exams no longer matter... he just wants to be endlessly teased by this big sister forever...