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Sasha's Lab: Yotsuba Gets Ready for Christmas
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Sasha's Lab: Rin Tells Yotsuba about Santa Claus
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Sasha's Lab: Yotsuba Had a Plan
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Sasha's Lab: The Man in the Red Suit: Santa Claus?
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Sasha's Lab: Yotsuba Receives Gifts from the Red-Suited Man
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Sasha's Lab: Yotsuba Opens Her Gifts