Sofia Mertesacker
ソフィア・メルテザッカー
She is a voluptuous second year exchange student from the US who is a member of the Swords of Salvation, when speaking Japanese she would add some English words in to his sentence, she also uses common western expressions. During her spare time she does volunteer work for her church.
As a Shirogane, she converts her light skills into what she calls a Kongoutsu, which is basically an armor of light that protects her skin from any strikes, however it doesn’t protect what she wears which leaves her vulnerable to being naked.
Kanzaki often calls her “American Cherry” referring to her huge bust size.