Artist, mangaka. Known as the illustrator of Strange and Bright Nature Deity, Oriental Sacred Place and Yousei Daisensou. However, he also draws unofficial doujins (in the same style as the official manga he illustrates) under his Circle name "Clash House"
https://www.pixiv.net/users/1207963
https://www.pixiv.net/users/60993160
https://www.pixiv.net/stacc/hirasaka8
https://www.pixiv.net/stacc/kotonoie
https://twitter.com/hirasaka8
https://twitter.com/pttp666
https://twitter.com/intent/user?user_id=452407336
https://twitter.com/intent/user?user_id=4634609714
http://dic.nicovideo.jp/id/1557967
http://www.amazon.co.jp/s/field-keywords=比良坂真琴
https://www.dlsite.com/maniax/circle/profile/=/maker_id/RG01016767.html
http://www.mangaupdates.com/authors.html?id=7207
https://www.melonbooks.co.jp/circle/index.php?circle_id=11602
https://www.melonbooks.co.jp/circle/index.php?circle_id=66772
https://ec.toranoana.jp/tora_rd/digi/ebk/circle/LUPA3A6P8U7MdC6Td687/all
http://ja.wikipedia.org/wiki/比良坂真琴
https://www.dmm.co.jp/dc/doujin/-/list/=/article=maker/id=201255
https://www.pixiv.net/stacc/pttp666
https://www.pixiv.net/stacc/user_apdc2222
https://sketch.pixiv.net/@pttp666
http://www.doujinshi.org/browse/author/4024
http://www.doujinshi.org/browse/circle/1459
