Marin Gumi

The Brilliant All Golden Tooth (1x47)

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Toshikazu's mother, Kazuko, is still frustrated by her son's poor grades. Uncle Sherlock tells Kazuko that if she really wants Toshikazu to take over the dental clinic, she should try the "Thirteen Nights of Umeboshi-sama's Ushi-Mairi". Kazuko was skeptical at first, but when she saw how pathetic Toshikazu was, she finally made up her mind. She started the Ushi-Mitsu-Mairi!