Frau Asakawa, also known as Yukie Asakawa, is a resident of an apartment building who grows suspicious of her neighbor, Ruriko Tonegawa. She suspects Ruriko of mistreating her elderly mother-in-law and potentially causing the death of her own husband. This suspicion drives Frau Asakawa to investigate further.

Her investigation leads to a significant discovery involving a potted plant, which uncovers a shocking secret. Frau Asakawa is thoughtful and introspective, demonstrating strong empathy and a deep connection to her emotions. This sensitivity allows her to form deep bonds with others but can also make her seem overly vulnerable. She holds a sense of idealism and values authenticity, often grappling with the fear of living an unfulfilling or dishonest life. Highly creative and imaginative, she tends toward artistic expression. She is married, as indicated by the mention of a husband.