相馬菜月（Souma_Natsuki）/相姦遊戯2・GAME.Ver（Soukan_Yuugi2・Game.Ver）

相馬 菜月

誠人の父親の再婚相手。元部下だったらしいのだが、現在は転職して雑誌編集に携わるキャリアウーマン。仕事への妥協は一切せず、自分・他人共に厳しい。男には負けたく無いという強い意識があり、競争・闘争心が非常に高い。家事全般は姉の美咲に任せてしまっており、若干の負い目を感じている。

Souma Natsuki

The woman who married Masato's father. She was apparently once his subordinate, but she has since changed careers and is now a career woman working in magazine editing. She makes no compromises in her work and holds both herself and others to high standards. Driven by a strong determination not to lose to men, she possesses an intensely competitive and combative spirit. She leaves all housework to her older sister, Misaki, and feels a slight sense of guilt about it.