一色ヒカル
Artist with "Magistr Temple 特典CD" album

一色由比
Artist with "脅迫〜終わらない明日〜" album

一色由比、秋月須清
Artist with "DogDays''-OST01" album

一路　真輝
Artist with the following albums: "Love Letter", "Der Letzte Tanz", "My Favorite 2001"

一路真輝
Artist with the following albums: "アイズ（I's）", "A Dream of Aria", "美わしのウィーンを歌う"

一路真輝, 山口祐一郎, etc... (TOHO)
Artist with "t「エリザベート」２００４年東宝公演ハイライ" album

一迅社
Artist with the following albums: "ハッカドール IN コミックス 特装版ドラマCD", "未確認で進行形 特装版特典ドラマCD"

一迅社／PULLTOP
Artist with "遥かに仰ぎ、麗しの ビジュアルファンブック付" album