Thank you for your review and also for pointing out those mistakes!
I wrestled on where to put the explanation on the dice mechanic because I did not want to overwhelm K-drama fans unfamiliar with TTRPGs with talk of dice before they had a chance to consider their character. I may restructure that arrangement in the future.
I did not mention it in the product page because it is still in the early stages, but I do intend on creating some example characters and an initial story arc as a sort of Starter Kit.
Viewing post in Sageuk! - Roleplay in Joseon comments
I don't think it's a bad thing having the dice mechanics at the end. Honestly, I'm not sure there's a right place to put it. Too soon and it overwhelms the lore, too late and the mechanics feel disconnected.
It just stood out for being at the very end when there was a bunch of stuff that referenced it earlier in the book.
I wouldn't sweat this too much. Maybe a link to it from an earlier section is all it needs?