Let's Contend for the Best & Unite

With the Lantern Festival experience under their belt, PROTOSTAR finally decide on a motif for the upcoming Release Battle. Each group and its members reflect upon themselves and each other. Which group will shine brightest on that Release Battle stage, which they've so passionately prepared for? What do Lin and Maoto want to convey to the three idol groups through the Release Battle?

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S02E10 - Horror Night