Reading all the comments but still i think
The reason he's nt allowing ray to visit magic tower is cz he already suspects him being Leonard and he may disappear using stones since he was a mage originally
so the reason why he forbid ray to go to magic tower isn't because he doesn't want him to learn something powerful (so ray can have a chance to betray him) but he doesn't want him to be looked down by those mage people... actually that makes sense, if he sees ray as a treat, he wouldn't let him to learn sword anyway...
My two cents, the plot is good and interesting however the writing and script is weird man. This chapter the prince just realize at moment that he wants to be like him?. What this weird