Saddled with huge debts, Haruka's parents become unable to support her and she ends up under the care of her paternal uncle. Haruka transfers to a nearby high school where her uncle works as a teacher, and just as she thought she could make it in this new environment...

One day, she came home late from school. Her uncle, who usually had a kind expression on his face up until this point, suddenly changed and he began to scold her harshly...
"A child like you who cannot understand with words leave me with no choice but to set things straight with your body..."

Between anger, sorrow and fear, her uncle's discipline begins, filled with pleasure...

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