Sirin is the Herrscher of the Void. She bears an intense hatred for humans and has a complex for power. Sirin has long purple hair and glowing yellow eyes. She usually wears a purple dress with long violet stockings and gloves. Because she’s only 13 years old, she has a the appearance of a young girl. Sirin acts very sadistic and murderous, wanting to kill everyone in Shicksal due to her past as a test subject.