Chang Gai Steiner

張・剴・シュタイナー, 張・ガイ・シュタイナー
17 years old and a secondyear student at Seisho Academy. Lus twin brother. An excellent student and athletic as well. He dislikes Daisuke for the childish way hes acting now that his dream of being a hero is coming true. But in fact just like Daisuke he remembers the prophecy Milo gave him: Doubt everything. He has the capability to be a cool and collected leader a talent he puts to good use in the S.D.S. Shibuya Defense Service.