Kai Toudou
藤堂繪委
media.gender: Male
media.bloodType: A
Date of birth: 1984-06-15
Height: 185cm
Kai is Ichika's other tutor. He teaches her math and science. He is introduced as the twin brother of Sei. Of the two, Kai seems the more extroverted one and more physical in nature and seems to have developed feelings for his twin brother, Sei. (from Wikipedia)
