Mangekyo No Hanayome (Laluna Bunko) [Light Novel]

[Machine Translation] The day she turns 20. Chihiro, a college student, is taken to an isolated island inhabited by a family that specializes in witchcraft. There, she is told that she is also a magician and that she must choose one of three potential fiancees. Nagi, a handsome doctor with a handsome face and glasses, Ren, a cool and good-looking junior at the university, and Teru, an old-fashioned and elegant woman who looks good in a kimono. -Chihiro is given a lewd secret spell and raped by these three men, awakening her sealed powers in the midst of the pleasures....

二十歳を迎えた日。大学生の千尋は呪術を生業とする一族が住む孤島へと連れ去られてしまう。そこで告げられたのは、自分も能力者であること、そして三人の婚約者候補の中からひとりを選んでつがわねばならないこと。優男風メガネ美形の医師・凪、大学の後輩でクールな美貌の漣、着物の似合う古風で端整な照。―淫らな秘術を施され、三人の男たちに犯された千尋は、快楽の極みの中で封印されていた力を目覚めさせていき...。