Arima, Ayumi

有馬亜由美

Takuya's stepmother. She is employed by Geo Technics, the company conducting excavation work at Sword Cape. Following her husband's death, she throws herself into her job to cope with her grief, yet a deep-seated sadness remains evident in her demeanor.
She is also an accomplished cook. However, without her glasses, she is practically blind. Ayumi faces constant pressure from the media due to a recent series of accidents at the construction site.