Defeat the Hero and Save the World!? The Demon King's Dungeon Creator!!

This is my first work!
I created it inspired by the "Yuusha no Kuse ni Namaiki da" series!
I rushed to make it for the contest, so there might be some bugs, but if you find any, please report them in the comments!
I'm also accepting ideas and requests!

By the way, the token count is about 7500... quite a lot...
I tested it minimally with Claude Opus 4.8...
I think it should be fine with the Gemini series as well, but...
Anyway, top-tier models are recommended!

Edit 1 (2026/6/25)
I reviewed the entire prompt and managed to save up to 5880 tokens.
I was able to reduce it to the "Normal" token evaluation count, so it should be a bit easier to play with standard models... I think.
I plan to continue updating it!

Edit 2 (2026/6/26)
I tried creating HTML.
Does it look a bit better and easier to understand...?
I plan to add new images sequentially.