Fūko Sorano wears her long black and green hair in a ponytail fastened by a pink clip. Her light grey eyes typically remain closed. She carries herself with reserved gentleness and modesty, always speaking with polite formality. Fūko deeply cherishes her boyfriend, Ryūji Ishii, and shares a significant bond with Kyouya Onodera, whom she befriended early on. Kyouya values this connection deeply, later confiding in her about the drawbacks of his supernatural talent.

Her ability allows manipulation of atmospheric air to craft sharp blades or lift people. This power functions best outdoors with ample ventilation; confined spaces hinder control and risk chaotic results.

Fūko and Ryūji evolved from childhood friends into lovers. A pivotal trauma struck during her routine jog when she witnessed Rentarō Tsurumigawa stab Ryūji. Unaware of the attacker initially, Ryūji identified Tsurumigawa as his friend before dying. In an act of mercy, Fūko ended Ryūji’s suffering by slitting his throat, an act that scarred her with relentless guilt. Memories of this event still reduce her to tears and reshaped her emotional world and relationships.

After Ryūji’s death, Fūko allied with Kyouya to investigate the murder. Her grief-fueled pursuit of justice drew her into escalating conflicts among students. She participates directly in critical late-narrative events, particularly confrontations and resolutions tied to Ryūji’s killing.