Aya (Mizuho Hata), an 18-year-old girl who hangs out in Shibuya, lightheartedly dabbles in a drug called "Tama". She meets Naoya (Yusaku Yonemitsu) at a club and becomes friends with him, but one day she is raped by a group of men who pick her up. The shock of this leads her to abuse the drug even more, and she spends her days in disarray.

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