Her House (Friday at 1PM for me). She will show you what shes been working on the past months: a functional, speaking robot, designed to help her parents when she decides to move out of the house. The robot however does not want to be a servant, thanks to the self awarness module Maru had implanted and leaves to find other synthetic life.
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Maru will then ask what you think about her creation(...) and if you answer right, she will kiss you for showing interest in her passion for science.