Taizou Aoyama is a member of Miss Asaji’s class, and is regularly seen in the company of Tadashi Nakabayashi and Yuuji Terayama. Taizou and his pals had a lot of theories on the cause of the soccer field vandalism, suggesting the supernatural was to blame. Taizou was later introduced to Guilmon prior to the battle with Sandiramon, and went on the school camping trip. Much later, when the D-Reaper threatened the world, Taizou was seen with the rest of Miss Asaji’s class as they shouted their support for Gallantmon. As Takato Matsuki summarised the months that followed the D-Reaper’s defeat, Taizou was seen with Miki Nakajima , Kazu Shioda, Kenta Kitagawa and Jeri Katou in the park.