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Ikegami presumed for Oboro's part.
On his blog, Kazuhisa Nakamura talks about a freelance animator who did Oboro's action cuts on OP, #5, #7 and who did the avan in #10. Ikegami is the only name that matches in the credits.
https://web.archive.org/web/20070116100732/http://www.geocities.jp/viperhp1977/diary.htm