Sekkekkyuu AA5100 (赤血球 AA5100 / 先輩赤血球)
AA5100 is AE3803's senpai and helps her find her way from time to time.
Hataraku Saibou CM
Supporting
Hataraku Saibou
Hataraku Saibou!!
Endou, Aya
Buckland, Kira
De Domenico, Tania
Pokorny, Tatjana
