Like what I said before, it's kinda weird for me, when the Rayne's sprite appears meanwhile the text is story narrations (which mean Rayne's though).
Most of the 1st person POV VNs that I've read, not doing this.
Well, there are some VNs that never show their protagonist face, tho😅 so, your VNs aren't that odd.
Don't worry about that, it doesn't make my reading session less enjoyable.
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I want to comment my reactions about some parts of the storyline. But it means I'll give people some spoilers😅
I enjoyed your VN, and from the prologue, I know that you often read manga or watch anime that isekai genre