Sarah, who works at a snack bar, and the bar owner are secretly sharing something: they're bisexual! Sarah was being abused by the man she was dating at the time, and when she had nowhere to go, the bar owner came to her rescue! They started living together and naturally became a couple. But one day, Sarah started to develop feelings for a regular customer, which made the bar owner Kokoro and she put a plan into action. And then...