Taichi is a silent and meek man, who is great with technology, especially computers. He is highly intelligent, but he lacks physical strength and appears to be quite timid. Similarly to his child, he is gentle, supportive and very willing to help others.

According to the Warriors of Hope, he doesn't care much for the seductive tricks they use. He is described as "frail and unreliable, yet a kind father".

He loved his child and wife very much. In his note, Taichi describes his desire to escape Towa city so he can find his wife and child. He explains that he must do his job as a father and husband, make sure his family is okay and give them a life they deserve. In the end, his last regret is not being able to see his child for one last time.