Kioku Saibo
Rare · Cells at Work!

Memory Cell is a Lymphocyte that retains memories of a pathogen. They're prepared for for a second invasion by the same bacteria or virus.(Source: Cells at Work Wiki)
Rare · Cells at Work!

Memory Cell is a Lymphocyte that retains memories of a pathogen. They're prepared for for a second invasion by the same bacteria or virus.(Source: Cells at Work Wiki)