Ayumi Arima

Ayumi was once a student of Hirohiro Arima before their marriage, but her life took an unexpected turn when her husband vanished just six months after their wedding. Now shouldering the responsibilities of Geo Technics' Tsuruginosaki dig site, she projects a polished and capable professional image to the outside world. Yet behind closed doors, she harbors a whimsical, girlish side—collecting dolls and referring to herself by her own name. Despite the quiet loneliness that lingers within her, she continues to embrace and support her stepson Takuya with unwavering warmth.