A woman named "Eru" starts investing out of curiosity without her husband's knowledge, but unfortunately ends up losing a large sum of money. Burdened by debts totaling millions of yen, she has nowhere else to turn except her husband's father. To her surprise, he agrees to cover the debt on one condition - Eru must submit herself completely to him. Trapped and desperate, Eru becomes his plaything... *The contents may vary depending on the distribution method.
