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Identity: It's a fanmade MSA anime and manhwa.
Background: In Tokyo, Japan, 2012, a 12-year-old girl named Mutsumi from the Hashiguchi family who wears a mid-knee-length lavender dress with puffed short sleeves with white sleeve cuffs and a white collar and a ruffled white apron, white tights and black shiny mary jane shoes and a key necklace met her great-great-grandmother named Misuzu's 122-year-old mother named Akiko who was born years ago back In the Meiji era, in 1890 who is her great-great-great-grandmother for the family gatherings who told Mutsumi that her great-great-great-great-grandmother named Shiori who is Akiko's mother was a traveling merchant. This was because before Mutsumi got back home, she saw Mutsumi exploring an abandoned house and she'd flinch everytime she heard a part of the house collapsing so she ran out and that's how she got home. What happens next?