Nanao Yozakura

As the youngest of the Yozakura siblings, Nanao is a biochemical prodigy with exceptional mastery over pharmacology and protein synthesis. He possesses a unique ability called "Adaptation," which allows him to neutralize toxins within his body and physically enhance himself. In everyday life, he presents himself as a towering figure concealed beneath a bucket-shaped helmet; however, during school hours, he relies on specially formulated drugs to maintain the appearance of a small, youthful boy. Gentle by nature and deeply averse to violence, Nanao works tirelessly behind the scenes to develop a wide range of specialized medicines for his family, making him an irreplaceable pillar of medical support and logistical backup for the entire household.