Chapter 6

After some thinking, Issei decided to learn about his life and death aura for now with LD because that's what bugging him the most for now since he doesn't want any mishap in case its gone berserk and kills someone he doesn't want to kill accidentally.

LD also agrees with this because she doesn't want Ise to kill anyone near him just like a certain Dark Mage she once saw.

(AN: Its Zeref in case you're wondering)

Even though Ise understanding and mastery are low enough to not kill anything at the moment but it's still better to be safe rather than sorry.

So she spent some times teaching Ise about it, and she's surprised because it only took him a week to learn the basic which is surprising because its quite difficult to learn that even Hades spent his whole life trying to understand the basic, that just tells that her new beloved perception is just that good.

(AN: I mean in the canon dxd Issei learn new stuff on a short amount of times considering he never trained his whole life no?).