Angel Touch · 2020-11-26 · 12-inch vinyl, 33⅓ RPM · 11 positions on this issue.
“Must be lucky ～愛の国へ～” occupies position B6, sequence number 11 of 11, on the DQJL-7116 edition of Angel Touch. This issue was released 2020-11-26 on 12-inch vinyl, 33⅓ RPM.
It follows “When Tomorrow Comes (Reprise)”. It closes this issue’s sequence.
Title and placement follow the cited release evidence. The linked Angel Touch essay supplies musical context; this position does not independently infer writing credits, duration or a recording match with a streaming file.