Korette, Doko kara Koi desu ka?

Luka Igarashi is an office worker with bad luck with men. On her three-year anniversary with her boyfriend, she discovers that she is having an affair with him! When she was crushed in the park after a night of drinking, she was rescued by Mr. Hoshikawa, a senior staff member who is rumored to be a playboy in the company. Luka had declared that he had had enough of men and was going to be a single woman for the rest of his life, but Mr. Hoshikawa suggested that he and Luka have fun together. Is this such a sweet beginning?