Dr.K

The planet Origin has used up its energy and does not have long left. Dr. K, its top agent, is put into a body built to look perfect and sent to Earth to collect an energy called X. Han-byul Na catches him almost as soon as he lands. She is eccentric, she has something on him, and she uses it. He cannot get around her threats, so he moves into her place, and the two of them keep house together while he works. Collecting X means getting close to women, and he gets close to a great many of them, women who look perfect by any measure, with kissing and with what comes after. It does less to him than it ought to. His heart goes off on its own when Han-byul looks at him, and she is not a person he can predict.