坂咲 優夜

Yuuya is the older half-brother of Sakuya, and also a Fantail Pigeon. Infamous in St. Pigeonation for being a big flirt, he often misses his classes. Despite his lack of attendance, he can be seen frequently helping out the school's infirmary as Shuu's assistant.

Based on the URL=http://clione.halfmoon.jp/hatoful-boyfriend/character/yuya.htmlofficial website