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A person in a white coat turns a knob on a machine with four cylindrical tanks, causing a yellow liquid to flow. A person with black hair plays a grand piano from an overhead view. A girl with black hair and red bows throws her arms up in excitement. A girl with red hair covers her face with her hands. A girl with light blue hair and large blue eyes covers her mouth with her hands in surprise. A girl with pink hair and pigtails sings into a microphone.