第1話: 白血球1146が血小板の介入を要する毛細血管の出来事の中でバックワードキャップと遭遇する

While chasing a germ that thinks it's cuteness will protect it, White-Blood-Cell-1146 meets Backward-Cap, a platelet training to get stronger. A sudden incident in the temple's area causes a breaking of capillaries, and the platelets must stop the internal hemorrage, with some coaxing from Megakaryocyte (cell that produces platelets).

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