Japanese screamo fused with ideas of progressive hardcore, metal, and post-rock instrumentals. - Last.fm / http://www.last.fm/music/Heaven+In+Her+Arms
Heaven In Her Arms are... Kent (guitar,vocals) Taka (guitar) Katsuta (guitar) Kentaro (bass) Shunsuke (drums). Playing since 2005. They're not really that popular, so the internet would be your best bet in finding their music - http://www.cdjapan.co.jp/.
"Iron Wire And A Canary"
「Roadside」: directed by Toshihiko Morosawa, including Heaven In Her Arms and their song "Wound Dehiscence".