Trivia Edit. 1  Saionji (西園寺) translates to “Western garden temple” while Hiyoko (日寄子) means “Child who brings forth day”. 2  Hiyoko (as 雛) is also the Japanese word for chick (as in a baby bird). 3  This association connected to Hiyoko's name matches her childish, innocent-looking appearance, as well as her hair color.hile in Hope's Peak Academy, Hiyoko befriended Mahiru, Ibuki, Mikan, and Sato. During their time together, they discovered a corpse in the music room. This was later revealed to be Fuyuhiko Kuzuryu 's sister, who was murdered by Sato.