Race: Human
Age: 19 (Chapter 1), 23 (Chapter 257)
Birthday: December 22
Height: 150cm (4'9")
Weight: 62kg

The princess of the human kingdom. Kidnapped by the Demon King, she spends her days waiting for the heroes to rescue her. At least, that's how it was supposed to be...

Soon after being taken as a hostage, Suya makes the most out of her situation by pilfering different objects to make her life easier (at the expense of the demons' peace of mind). Initially acting quite selfishly, the longer her stay at the Demon Castle extends, the more Suya finds herself caring about its citizens and taking more interest in the political relations between the human and demon kingdoms.

Although others tend to see and treat her as a child, Suya is actually an adult. Despite her tendency to laze around, she is very meticulous, efficient and focused when it comes to doing her work as a royal princess, and it is implied that she seldom got time to rest while living in the human kingdom. As evidenced by the various objects she builds herself, Suya is also quite handy and resourceful.