Chiyu Yakutani

Chiyu was Kanji's younger sister during his life in Japan. At the age of four, she was diagnosed with a brain tumor deemed inoperable, and after enduring two years of suffering, she ultimately passed away. Her death became the fundamental reason Kanji devoted his entire life to pharmaceutical research, eventually dying from overwork. Furthermore, after his reincarnation as Pharma, her memory became the very foundation of his unwavering resolve to protect all lives.