Tecchou is a serene person, Being a bit serious at times in his work, however, he is shown to be somewhat eccentric and weird, doing particularly weird act, How to watch ants for 8 hours or do push-ups in the middle of meetings. He has a strong penchant for justice. For other part he is quite formal, this largely reflects Suehiro's true samurai lineage. (From bungou stray dogs)