アウェイクニング スペシャル・エディション · 2014-12-10 · 2 × Blu-spec CD2 · 20 positions on this issue.
“SAY GOODBYE” occupies position Disc 1 · 10, sequence number 10 of 20, on the MHCL-30275–MHCL-30276 edition of アウェイクニング スペシャル・エディション. This issue was released 2014-12-10 on 2 × Blu-spec CD2.
It follows “AWAKENING”. The next position is “AWAKENING（覚醒）（Off SE）”.
Title and placement follow the cited official release page. The linked アウェイクニング スペシャル・エディション essay supplies musical context; this position does not independently infer writing credits, duration or a recording match with a streaming file.