I've read it last week but forgot to comment.
I re-read it again. Speechless. I feel like I understand it better now.
This is really amazing. Awesome. One of the best doujin I've ever seen.
How a story can be read in reverse is a thing in written stories, now that I think about it (it's called fictogemino). This is the first time I've seen it implemented in a comic, however. I think the doujin managed it quite well. It fits Seija as well (fits her too much, in fact). Good job.
Thank you for translating and bringing this to us.