Wolf Girl and Black Prince, Vol. 7  (English, Paperback, Hatta Ayuko)

High school girl Erika may be on Kyoya's leash, but she's determined to break free and unleash his heart! Fed up with being hopelessly single, high schooler Erika makes up a boyfriend to fit in. When her lies start to unravel, her schoolmate Kyoya offers to be her pretend boyfriend-for a price. With no other choice, Erika finds herself at the mercy of a blackhearted prince! But is Kyoya truly as blackhearted as he seems? Kyoya goes full sadist mode when he's tasked with tutoring Erika's little cousin Lena, a headstrong, smart-aleck middle schooler. But Lena appreciates Kyoya's tough love approach, and later, when he saves her from a scrape in a bookstore, she suddenly finds herself head over heels! How will Kyoya and Erika get out of this one?!