Fumiko is married to Daichi, who is the brother of Akira, Hideo's wife. This makes Fumiko Hideo's sister-in-law.

Harumi is the daughter of Daichi and Fumiko. Daichi is the brother of Akira, who is Kenji's mother. This makes Harumi Kenji's first cousin, as their parents are siblings.
Akira is married to Hideo, and they have a son named Kenji. Akira has one brother, Daichi, who is married to Fumiko. Daichi and Fumiko have two children, a daughter named Harumi and a son named Isamu. How is Fumiko related to Hideo, and how is Harumi related to Kenji? Provide a very short response.