Full Moon wo Sagashite

Green Onion Ramen and the Saint's Stone (1x12)

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Takuto gets mad at Mitsuki for drawing a terrible picture of him. He fies off and Meroko follows. Meanwhile, an old man collapses in frotn of the house, and Ms. Tanaka takes him in. As a show of gratitude, the old man gives Tanaka the Saint's Stone, a big rock that has the power to expel Shinigami. So, naturally, the stone prevents Takuto and Meroko from getting into contact with Mitsuki, which is bad because she has a job to do later.