Tatsurou is timid, shy, indecisive and insecure at times, acting very passive and non-confrontational. Rather slow to understand Yukikaze's advances as serious, he is very oblivious, unable to understand her and Rinko's intentions. Tatsurou can rise up to the occasion, helping to end the mission Yukikaze and Rinko are on, after learning the nature of it, but can easily remain silent not wanting to start a scene.