Yuugo Saeki

not to be confused with Yuugo Sakurai of the same game

Yuugo Saeki (佐伯 優悟 Saeki Yuugo) is a side character of Fake.

Background
Yuugo was the younger twin brother of Asuna, whose death had a lasting impact on him. He eventually became the head of the Mikado Medical Research Institute and became the husband of Sara Saeki.

Fake
Sara offers to help Yuugo revive his sister with the help of the Necronomicon.

Yuugo is also the tutor of Kagura Mikado.