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Identidade: It's a fanmade MSA anime and manhwa.
Antecedentes: In Tokyo, Japan, a 116-year-old great-great-grandmother in a wheelchair named Satsuki from the Nishimura family met her great-great-granddaughter who is the first protagonist who is a 4-year-old girl named Shiori who was playing with her kitten named Mari who was itching due to fleas and needs a bath. There, Shiori met her great-great-grandmother Satsuki. . . What happens next?