Sen Tokugawa

She's Muneakira childhood friend and she shows feelings for him. She then reveals her feelings, and kiss Muneakira, becoming his third Samurai Master. Her weapon is a naginata decorated near the blade, and her transformation phrase is "Tenga Ryūrei", which means "Elegant Beauty". Sen's attacks usually revolve around thunder or lightning. She has a friend (or a ninja maid) named Hanzou Hattori.

She's voiced by Minako Kotobuki.