Mirrors:

http://filespace.com/eg3mivya6hia/koyukitakahashiTB6_1_hdmp4.part1.rar.html
http://filespace.com/rugjv02zre4s/koyukitakahashiTB6_1_hdmp4.part2.rar.html
http://filespace.com/swxp8ib5i9tp/koyukitakahashiTB6_1_hdmp4.zip.html