Ep. 20: Keitaro e Mutsumi ouvem uma boneca que se move sozinha e que o lembra de uma promessa familiar

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Keitaro discovers a doll that can move on its own. Everyone is amazed by it but Keitaro and Mutsumi seem to be able to hear it talk also. Keitaro finds out from the doll that his great grandfather promised to fix its legs but never did and being the good guy he is, Keitaro decides to fulfill his ancestor's promise with the help of the girls, of course. (Source: Wikipedia)