Kouno Asami

A radiant figure within the school who serves as Mitoko's homeroom teacher.
Her alluring charm has earned her the affection of both male and female students. Her professional demeanor paints a picture of a confident and competent woman, but away from the public eye, she has a surprising propensity for engaging in petty squabbles.

Despite her apparent successes, Asami leads a challenging personal life, most notably plagued by her unfortunate misadventures in the realm of romance.

Former wife of Osamu. They divorced two years before the beginning of the game.

Translated and edited from Official Site