A university student named Lyra has her thesis on BDSM power dynamics publicly ridiculed by a classmate, who mocks her lack of experience and suggests she kneel and beg him to be her 'master' for practical lessons. Lyra defiantly rejects him, declaring she has already found the perfect mentor in the world, whom this classmate is not worthy to serve. Later, a mysterious man confronts Lyra, questioning why she has returned after previously running away.