The anime personifies the Hacka Doll app's customization engine as three "Hacka Dolls" — the personal entertainment AI and main navigator Hacka Doll #1, the anime expert Hacka Doll #2, and the knowledgeable otaku Hacka Doll #3.
(Source: Anime News Network)+ More
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Hacka Doll 1-gou
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Miyu Takagi
Japanese
Hacka Doll 2-gou
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Kaya Okuno
Japanese
Hacka Doll 3-gou
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Nanami Yamashita
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