A Vocaloid Lovestory: The Expressionless Girl

Its a story of a certain young girl that never expresses her expression to anyone even to her close friend.Until one day, she was paired with someone to help with her cleaning assignment and to make a big project until the end of the 1st semester.What will happen when a girl without expression and a happy guy paired together? Stay tuned
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Its going to be mikuxlen and rinxmikuo in the first but rin and len will end up together in the last