Artist.

Japanese name: 紫心 (Shishin)
Circle name: 紫心亭 (Shishin-tei)
The other circle name: 紫心庭 (Shishin-tei)

See also

• Pixiv account: http://www.pixiv.net/member.php?id=5295820
• Pixiv sketch account: http://sketch.pixiv.net/@tatsuya_ishikawa_790
• Niconico account: http://www.nicovideo.jp/user/21758525
• Niconico community: http://com.nicovideo.jp/community/co2215569
• Niconico Seiga: http://seiga.nicovideo.jp/user/illust/21758525?target=illust_all
• Twitter account: http://twitter.com/brs_tuki8
• Ask.fm account: http://ask.fm/brs_tuki8
• Twipple photo images: http://p.twipple.jp/user/brs_tuki8
• Pawoo account: http://pawoo.net/@brs_tuki8
• Comike Web Catalog: http://webcatalog.circle.ms/Perma/Circle/10340594
• Nijie account (unconfirmed): http://nijie.info/members.php?id=764974