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Maria calls on a devil to save the life of her beloved stepbrother, Hikaru. The devil that appears is an overwhelmingly beautiful man with black hair and black eyes. Given the name "Kuroki", the devil grants Maria's wish, but in return she must have sex with him 666 times! Maria is subjected to countless hot and heavy nights. And then, even Hikaru begins to be seduced by the ways she's changing... This is a story about sweet and sexual love!
The following content is intended for mature audiences and may contain sexual themes, gore, violence and/or strong language. Discretion is advised. From MangaPlaza: A rollercoaster romance following an office worker hopeless in love and a younger company president whose hobby is to both dote and tease! Convinced that being a wallflower is all she needs to be happy, Misaki has resorted to keeping things simple from day to day. But when one thing suddenly leads to another, she spends the night in bed with Atsumori, her company's president. And it doesn't stop there. After their first night of passion, he begins pampering her like crazy and even buys her a new apartment! On the other hand, despite her reservations about love, Misaki finds herself more and more attracted by Atsumori's mind games!