| U, Haena (Yu Haena) |
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| U (UCO, U子, Funta3, Yuu, ユウ) |
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| u | |
| U (Lastcrime) |
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| U-jin | |
| U-ka saegusa IN db (Yuuka saegusa IN db) |
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| U-KIRIN (Yuki Ohnishi) |
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| U-KISS | |
| U-me Soft (Ume Soft) |
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| U-min | |
| U-pi (Upi, Eopi, Eopy) |
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| U-suke | |
| U-Suke (Yuusuke, ユウスケ) |
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| U-temo | |
| U.bi | |
| U.G.E (うげっぱ, Ugeppa) |
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| U35 (Umiko, うみこ) |
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| U4 | |
| UA | |
| Uanke | |
| Uayeon | |
| UB Chen | |
| Uba, Yoshiyuki | |
| Ubaldi, Pietro | |
| Ubaldi, Marzia | |
| Ubanis | |
| Ube, Yoshiki | |
| Ubisoft | |
| Ubukata, Tow (藤野峰男, Mineo Fujino, 雲居るい, Rui Kimoi) |
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| Ubukata, Naomi | |
| Ubukata, Yayoi | |
| Ubukata, Ubu | |
| Ubune, Coma (Koma Ubune) |
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| Ubuno, Hatsuna | |
| Ucca-Laugh (Yuka Niiyama) |
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| Uchi, Yuuki | |
| Uchi, Hiroki | |
| Uchi, Yoshimori | |
| Uchibayashi, Yumi | |
| Uchibayashi, Noriyoshi | |
| Uchibori, Masato | |
| Uchibori, Yuuichi | |
| Uchida, Yuuya | |
| Uchida, Pekoru | |
| Uchida, Shun | |
| Uchida, Shinichiro | |
| Uchida, Takuya | |
| Uchida, Haruhiro | |
| Uchida, Masashi | |
| Uchida, Megumi |