I didn't expect the piggy bank And that last scene with Nia reinforces my shipping of those two.
Not too interested in the fine print of Rokka's body, but I suppose it serves to explain the details from previous flashbacks. I also wonder if the author had more ideas for that particular subplot before the series ended.
Edit. Yup, might be, let me get into it. I’ll have a TLer check for me. Remember tho, the script was translated from the Korean version, I’m working from the Japanese version... and KR version no longer available to me at least.