The Tōdō (藤堂) Brothers are twin brothers who are Ichika Tachibana's tutors.
- The name Sei means "oath" (誓) (se) and "only" (唯) (i).
- The name Kai means "painting" (繪) (ka) and "commission" (委) (i).
- The brothers' surname Tōdō means "wisteria" (藤) (tō) and "temple" (堂) (dō).
Sei Tōdō (藤堂 誓唯 Tōdō Sei)
Kai Tōdō (藤堂 繪委 Tōdō Kai)