He wants to be someone who can be on the same qualifications as a Vampire, as Stelle says.
For that very reason he has been preparing himself in everything he can. Because of his status as leader of the human union he has almost a noble status as a vampire even though he is not a vampire. The specific reason why the vampires respect him is because of Valery and he is aware of that.
But he doesn't want it to be that way, he wants to be respected by all equally not because of Valery's influence but because of his own merits.
That's why he has been preparing himself so much.
He goes to the scholar's association to study everything he can about vampire society and has made great strides when it comes to vampire writing, being at the level of a vampire in his 20s.
He has also been training constantly to handle the sword and trains day and night, not only with Stelle's guidance but also with new recruits of the Sword family who were preparing to go to the battlefield.
