Ripped from YouTube, this is one of the greatest OP themes in history of animation - IMHO. It ranks 2nd in my personal list, after the legendary 'Melos no You ni -LONELY WAY-' by AIRMAIL FROM NAGASAKI and before 'Fushigi CALL ME' by MIO.

NAOZUMI-MASUKO - B-FIRE
https://mega.nz/#!HHozALAD!Ge9_vlzYhMzqsh0p4jL01YOM2FIFThlN3fQonxp_LlE

No higher bitrate available, at least not yet...