Ryumao
I hope that we get to see Rudeus being trained & guided by Death-God Randolph to learn & master:- (1) Bewitching Sword Style upto Emperor-Rank (2) North-God & Water-God styles upto King-Rank (3) Sword-God style upto Saint-Rank. Rudeus should also get to learn these techniques from Dragon-God Orsted & other Dragon-Kings:- (1) Dragon-Touki control & Hand-to-Hand Combat (2) Dragon Gate Technique (3) Dragon Flames (4) Dragon-Race Gravity Manipulation & Flight (5) Saint-Dragon Touki style (6) Dragon-Race Reincarnation technique Due to Rudeus's Human side, he should be able to Master the above teachings in a span of almost 5 to 10-years, making him as strong the late Demon-Dragon King (Dragon-God) Laplace. Rudeus should also develop his own Unique way of using Teleportation like Naruto's Flying-Raijin technique. Rudeus should Activate Chantless incantation for the likes of Pergius, Roxy, Elinalise, Paul, Lilia, Rujierd etc.