I loved the pixel art, the princess reminded me of Elira from Nijisanji, they have awfully similar design. Considering she is in the group called "LazuLight", the title being "Lightless" really connects all the dots, i don't know whether this is a coincidence or meant to be a reference, but good game. My only critique if i had to nitpick was that the glow was a little small, when i was browsing the maze, it was a little hard to see where i was going, but other than that, well done!
9/10