Mathieu Steele

Mathieu Steele, born Mathieu Frond, was a Tiller and Sena Steele's father.

History
Mathieu Frond was a Tiller alchemist. He changed his surname to Steele in order to marry Sylvia Steele. The couple had a daughter, Sena.

Once, he and his wife created a chimera, but his daughter accidentally left the door open and the chimera went out. He was executed and his wife was imprisoned.

The Unicorn Quest
Mathieu was mentioned by Sena when she was talking about her past.

Fire in the Star
His daughter found out Mathieu faked his own execution and helped his wife, Sylvia, escape.