Thrown into a ruthless countdown, you are tasked with transforming Reina, a pampered and defiant student, into a scholar capable of conquering the University of Tokyo's grueling entrance exam. To strip away every possible distraction, you both are exiled to a remote tropical island, where survival depends solely on your ability to focus and teach.

The pressure mounts as each day brings new challenges: from handling Reina's rebellious tantrums to navigating her unexpected submission when pushed beyond limits. Alongside the academic grind, boundaries blur when playful dominance and humiliating scenarios surface, revealing layers of power exchange that complicate your tutor-student relationship.

Approaching the final day, the stakes could not be higher: failure condemns you to a life among coconuts and ramen, stripped of society’s comforts forever. Success offers escape - returning you both to civilization, your roles forever changed by the intimate trials endured.

Will you break through Reina’s defiance to sculpt a prodigy worthy of Tokyo University, or will her spoiled arrogance drag you both into a wild descent of submission and defeat?