Tou Sengyoku is a doushi from Kingou Island and the daughter of an officer in the Yin army, Tou Kyuukou. Under Bunchuu's command, she spied on the Zhou army but later switched sides to join Taikoubou and the Kongrong mountains after falling in love with Dokouson. She has a deep fear of birds and anything repulsive. Her phobia of birds stems from Ryuukan's persistent stalking, as he is an archer capable of controlling a large phoenix.
Her paopei is a magic ball named Gokouseki, which chases its target and makes its face 'strangely lewd' upon contact, reminiscent of 70s shoujo manga. When Taiitsu Shinjin examined her paopei, he found a 20% limiter installed within it. Removing the limiter boosted the impact power of the ball and enabled it to create distracting split images, though it also increased the energy drain on Sengyoku.
