Yuuto, being the son of Taro, who is Kenji's brother, would be Akira's first cousin because their fathers are siblings. Similarly, Daichi is the son of Hiroshi, Kenji's other brother, making Daichi also Akira's first cousin. In relation to Kenji, since Yuuto and Daichi are sons of his brothers, they are his nephews.

Hiroko, being Akira's only cousin on his mother's side, means she is not a child of Kenji's siblings (Taro or Hiroshi), but rather a child of Akira's maternal uncle or aunt. Therefore, Hiroko is not related to Taro, because Taro is Kenji's brother, and Hiroko's relation to Akira is through Akira's mother, not Kenji's side of the family.
If Akira is Kenji's son and has two uncles, Taro and Hiroshi, and each uncle has one son, named Yuuto and Daichi respectively, how might Yuuto and Daichi be related to Akira and Kenji? If Hiroko is Akira's only cousin on his mother's side, is Hiroko related to Taro? Provide a very brief response.