After meeting the Third Prince, Noel returned to his room. He didn't know whether the Third Prince was still observing him or not, but in any case, he wouldn't be able to find the one who monitored him.
Hence, Noel simply laid down on his back, staring at the ceiling. They had talked about a few things, but Noel also managed to hide some things from the Third Prince.
While closing his eyes, he thought, 'I already learned about the variety of runes. However, the runes themselves are divided into five main categories. The first one is the popular method that people know, the Rune Enchantment. As for the other four, they're Rune Engineering, Rune Spell, Rune Body, and Rune Array.
