Taro is married to Hana, who is the sister of both Akira and Kenji, which makes Taro Akira's and Kenji's brother-in-law. Yuto and Saki are the children of Hana and her husband Taro, so Yuto and Saki are both Akira's and Kenji's nephew and niece, respectively.
Akira is Kenji's brother, and they have one sister named Hana. Hana is married to Taro, and they have two children, a son named Yuto and a daughter named Saki. How is Taro related to Akira and Kenji, and what is the relationship between Yuto and Saki to Akira and Kenji? Provide a very short response.