記憶細胞
from Cells at Work
Memory B Cell or just commonly known as Memory Cell (記憶細胞 Kioku Saibō?) is a minor character in Cells at Work!. He is a white blood cell, specifically a Memory Cell (B Lymphocyte). Unlike other white blood cells he does not engage in any combat; he records all the information of the past antigens that invaded so the immune system will be prepared when the same threats invade again. He is an average-looking cell with black messy hair and eyes. He wears a black polo, grey slacks and vest, and a purple tie. Despite having a good memory capacity, he is often troubled when remembering things, as he is scatterbrained and constantly overthinking, thus making it difficult for him to do his job properly. He has a negative mindset and panics most of the time whenever an invasion occurs. Overall Abilities: He remembers antibodies so the immune system knows how to respond to an invader when it strikes again. He usually works together with B Cell for his antigens. Allergic Reaction: He also refers to data passed down through genetics, which could lead to an overreaction toward harmless invaders, thus an allergy. Acquired Immunity: The main principal vaccines are based on. After encountering a type of virus in the past, the body becomes permanently immune to the virus because the Memory Cell knows how to deal with it.

Cells at Work
This is a story about you. A tale about the inside of your body... According to a new study, the human body consists of approximately 37 trillion cells. These cells are hard at work every day within a world that is your body. From the oxygen-carrying red blood cells to the bacteria-fighting white blood cells, get to know the unsung heroes and the drama that unfolds inside of you! It's the oddly relatable and interesting story that is the life of cells! (Source: Aniplex USA)

Cells at Work 2nd Season
The cells of the human body never rest for too long; there's always something new to do and learn every day. At least, that's what Hakkekkyuu U-1146 feels as he rushes to and fro, searching for any pathogens that could cause harm to the body. Despite his dangerous line of work, it's all worth it to protect the happy smiles of Sekkekkyuu AE3803, the platelet crew, his fellow neutrophils, and the other cells he meets along the way. In his latest pathogen-hunting adventures, Hakkekkyuu U-1146 discovers how important cells can sometimes make mistakes, and that not all bacteria are actually bad. Everybody has their bad days, but everything eventually works out when their comrades have their backs. In the end, it's just another normal day for these hardworking cells!