Adypoker

Supposedly, the reason why they are rare is because they can quickly grow stronger through eating other Monsters/Beasts, which makes them hated by every race, and that can be seen in the "eight-spider lances", which can steal the qi from anything it kills.

Wrong Chapter AGAIN!

Except for the fact that you should be immune to rule-based powers, which should mean that even at the start you shouldn't have needed to use the key to unlock your gift when it was sealed in the laboratory...

Dude, read the novel before answering me... The MC is Issei's twin, but is called Issei Ryudo or whatever the name is...

I don't understand how I've kept reading this, because it's extremely annoying...

Add a +1 to those levels, lvl 0 is before reaching mastery.

Was thoroughly enjoying it until the Tsubasa debacle, okay, she was cruel to Nami, but she shouldn't have died.

? That's wrong, the twilight healing never hurt devils, or she wouldn't have been excommunicated...