Hiiro Miyata is 19 and works hard to be able to afford both her college and paying rent to her financially irresponsible mother. Physical intimacy makes her sick, and her only vice is huffing air fresheners when she's anxious. While working in a convenience store, she ends up befriending Miyabi Enaga, an aloof girl shunned because his father once killed a person. Based on a novel by Ayano Takeda, the author of Sound! Euphonium.