The eldest daughter of the prestigious Saegusa family, one of the Ten Noble Clans. Mayumi, with her noble beauty, chose a political marriage to an “obese middle-aged man”—a union that would determine the very survival of her family. As the solemn ceremony concluded, the curtain fell on their wedding night in the basement. Clad in a pure white wedding dress, she bared her porcelain skin to receive the lust of the greasy man. The man’s thick fingers probe through the layers of lace, and the sacred dress is mercilessly defiled by lewd sweat and milky droplets.

This intrusion into her ordinary life extends even to her school days. Even in the middle of class, if her husband summons her, she has no choice but to obediently go to him. The girl who once reigned as student council president is now melted by her husband’s cock in an empty classroom after school, her pride gradually stripped away. At the end of relentless impregnation, the intelligence vanishes from her eyes, replaced by a hollow fervor seeking bottomless pleasure.

A few months later, her once-slender waist was gone, and her abdomen—stuffed with the desires of men—was distorted and swollen with fullness. She had broken down to the point where even the heartbeat of the life writhing within her no longer brought shame, but only lewd delight. In the park late at night, her figure, illuminated by the streetlights, was so lewd that it was unrecognizable as the former flower of a prestigious family; she wore the smile of a succubus, solely intent on luring males.

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十師族が一つ、名門・七草家の誇り高き長女。その気高き美貌を湛えた真由美が選んだのは、家の存続を賭けた「肥満した中年男性」との政略結婚だった。厳かな式が終わり、初夜の帳が下りる地下室。純白のウェディングドレスを身に纏った彼女は、脂ぎった男の欲望を受け止めるべく、その白磁の肌を晒す。幾重にも重なるレースの隙間を男の太い指が弄り、神聖なるドレスは卑猥な汗と白濁した雫で無残に汚されていく。

非日常の侵食は、学園生活にまで及ぶ。授業中であろうと夫から呼び出しがかかれば、彼女は従順に足を運ぶしかない。かつて生徒会長として君臨した少女が、放課後の誰もいない教室で、夫の肉棒に蕩かされ、プライドを削り取られていく。執拗なまでの種付けの果てに、彼女の瞳からは知性が消え、代わりに底なしの快楽を求める空虚な熱が宿り始める。

数ヶ月後、かつての細い腰は失われ、男たちの欲望を詰め込まれた腹部は歪に、そして豊満に隆起していた。胎内で蠢く生命の鼓動にさえ、彼女はもはや羞恥ではなく、淫らな悦びを感じるほどに壊れてしまった。深夜の公園、街灯に照らされたその姿は、かつての名門の華とは思えぬほどに淫靡で、ただひたすらに雄を誘う魅魔の笑みを浮かべていた。