Fuuko maintains long-term residence as a middle-aged prostitute near the military base. She possesses a pragmatic, experienced detachment towards her profession, understanding her clients seek physical release, not emotional bonds—unlike colleagues such as Kusumi. Jinroh, a pilot with a gentle, dreamy nature, became the sole exception to this outlook, inspiring her genuine affection. Despite her probing, Jinroh never disclosed the source of his melancholy to her.

His death inflicted profound, lasting grief upon Fuuko, a melancholy still evident in her voice when she speaks of him. This loss directly shapes her interaction with newly arrived pilot Yuichi Kannami, whose mannerisms and appearance strongly evoke Jinroh. During their intimacy, she explicitly connects Kannami’s presence to Jinroh’s absence, bluntly stating his reassignment confirms Jinroh is dead. Her attachment to Kannami reignites her fear of enduring another traumatic loss.

Fuuko demonstrates knowledge of base personnel extending beyond her professional role. She discovers the injured Suito Kusanagi after Kusanagi's aircraft crashes near her residence and facilitates her return to the base. Later, she reveals to Kannami she once witnessed Kusanagi in a similarly vulnerable state, implying Kusanagi previously visited the brothel as a client. Fuuko interpreted Kusanagi’s distress during that earlier incident as stemming from an emotional wound, suggesting something had "plowed straight into her heart."