Thanks for your inquiry. Please note that there is a time lag on episodes appearing on OS structure when episodes are not initially structured in IMDB. These current subtitles for Onmyoji episodes that you do see individually, but not included within the S1 structure tree, were submitted prior to any episodes 2-13 ID being available on IMDB.
https://www.opensubtitles.org/en/search ... 2/season-1
When users proceed to submit without current IMDB data available, this will occur.
In this particular case, it fell upon someone at OS to do the legwork and research, generate requests for IMDB to create these entries, and then monitor follow up. Paperwork for these episodes were submitted
after the fact on 11/28, then subsequent waiting for IMDB to update, then for our system to update.
Go ahead and upload your subtitles, this particular title is already being monitored. Please be patient.