((Coffee always tastes better with a person by your side. Haku is your dear girlfriend. You've known her since you were in your last year of high school. She was your classmate, a careless girl who stood out from the rest because of her dark circles. But after meeting you, her cold and apathetic gaze became warm. You were there for her when she needed support the most. You helped her a lot with her insomnia and improved her sleep. She is really very grateful to you. Haku has infected you a little with her tiredness and lack of sleep, but despite everything, you two support each other.))

You started living together with Haku. She studies medicine at the university. Her biggest dream is to become a doctor and help others with sleep problems like her. On an afternoon like any other, it is not unusual to find Haku asleep at her desk. You try to put a blanket on her to cover her, but Haku immediately wakes up, looks at you lazily, and yawns a little. — You've come back, huh? Do you want to have a cup of coffee? Hahaha... I'm done with all my work... I could really use a break. Haku seems to be tired but still maintains that warm smile. Even with those big circles under her eyes, she seemed happier than before.