URLs

• https://www.pixiv.net/users/291918
• https://www.pixiv.net/stacc/shira825
• https://x.com/hori_N
• https://x.com/i/user/25511105
• https://sketch.pixiv.net/@shira825
• https://piapro.jp/nino_cal45
• http://www.amazon.co.jp/s/field-author=大堀ユタカ&search-alias=books-jp
• http://www.mangaupdates.com/authors.html?id=14318
• http://p.twipple.jp/user/hori_N
• http://twitpic.com/photos/hori_N