Kakyou

A woman who was friends with Tousen before he became a soul reaper. Though Tousen was attracted to her, she married a soul reaper instead. Some time later, she's killed by her husband when she condemns him for killing another soul reaper over a minor disagreement. Her death prompts Tousen to become a soul reaper to fulfill her dream of peace in the soul society. Her name and face is never revealed in either the anime or the manga.