Hakkekkyuu U-4989

Оригінальне ім’я: 白血球 U-4989

He is a Neutrophil working under the Neutrophil Division and a close friend of U-1146, along with U-2001, U-2626 and U-2048. As a neutrophil, his purpose is to destroy bacteria invading the body. (Source: Cells at Work Wiki)