Seirei Rougoku Nyehiru ~Choukyou Zumi no Osanai Shikyuu ni Kizamareru Koufuku Bunsho~

精隷牢獄ニェーヒル〜調教済みの幼い子宮に刻まれる降伏文書〜, NIEHL in the Prison of Seminal Servitude ~declaration of surrender engraved in the womb~