[Listening to your decision, Jade and the others didn’t disagree. Since the development path of the Zenith Train Crew was the elite crew route, they wouldn’t mind having new train crewmates as long as those newcomers were talented and had great potential.]

[The stronger the Zenith Train Crew became, the safer it was for the rest of the crew.]

[Jade asked, "Darling, will that Angel of Death agree to our invitation? Even if he has the intention to leave this station world and become a train crewmate, it’s not guaranteed he’ll join us."]

[She didn’t doubt what your Hint Prompt discovered. Just that, most of the train crewmates invited by you and her were those who were indebted to you.]

[For example, Scarlet and Astraea were both invited after their respective quests were completed.]

[The only train crewmate that didn’t have such requirements was Old MacDonald. But even Old MacDonald was invited using a Train Crew Summoning Scroll.]

[For the Zenith Train Crew to invite someone this casually and without special means was a first.]

[In response to Jade’s question, you answered, "As I’ve mentioned, he would only join a train crew filled with powerful and talented crewmates."]

["So far, all of us fit that requirement since not only are we more powerful than him, but our high bloodline rank indicates our high talent and potential. It’s impossible for him to refuse our invitation."]

["Moreover, from what I discovered, as long as we defeat him in a one-versus-one battle, he’ll be convinced to join our train crew. It also helped that the Death Papyrus I’ll be using is the one he created."]

["At most, after I use his Death Papyrus, we’ll wait for him to track the Death Papyrus’s usage and come to us, which won’t take more than a week according to Rule 10."]

[Hearing your assurance, Jade and the others no longer worried about that matter.]

[As a Train Conductor, you didn’t care about the gender, race, or age of the train crewmates you invited. It just so happened that two of the train crewmates you invited were female.]

[The only male you had invited as a train crewmate was Old MacDonald, and he’s even an old man. Now that you have the opportunity to invite a talented and powerful train crewmate, you wouldn’t mind if they were male or even non-human.]

[So far, the only humans in the Zenith Train Crew were you, Jade, and Old MacDonald. Even Old MacDonald was barely a human as he was a human from the fairy tale world who had been turned into a legend.]

[Your few requirements for inviting train crewmates were for them to possess high potential and talent. Their power was secondary, and rather than power, you value those who were trustworthy.]

[So far, the Late Diamond rank Angel of Death you scouted fulfilled your requirements. Although he was arrogant and didn’t care about lower lifeforms, he held respect for those who were powerful and capable.]

[Since the Zenith Train Crew was filled with powerful and capable people, you wouldn’t have to worry about him causing any trouble.]

[You also weren’t worried about him being poached by other Train Crews, since none were as monstrous as your Zenith Train Crew in terms of talent and potential.]

[The arrogance and pride of that Late Diamond rank Angel of Death were mostly due to his status as a genius of the Angel of Death race. Naturally, he wouldn’t want to be with the weak and incapable, as that would be beneath his status.]

[But since you and the others were his "equals", he wouldn’t mind joining your Train Crew.]

[’Although that guy is arrogant and prideful, my Hint Prompt still discovered that he’s trustworthy. He’s not a brainless idiot and also won’t betray just because he saw a more powerful Train Crew.’]

[’His brain circuitry might not be normal, but at least he’s not dumb and can still be relied on for important matters. Anyway, no one is perfect, and if I keep nitpicking every flaw potential train crewmates would have, then who knows how long I’d have new train crewmates.’]

[’At most, he just disdains those who are weaker and less talented than him, not wanting to communicate and be with them, as doing so would be beneath his status.’]

[In your case, that was just a minor personality flaw. If Astraea wasn’t bullied and had lost favor in the Dravenhart Clan, then a Vampire Royal like her would be as arrogant and prideful.]

[You knew that you couldn’t hold human values on these highborn long-lived races.]

[As long as they were trustworthy and didn’t have any disgusting and abhorrent hobbies, you wouldn’t mind recruiting talented individuals like that, Late Diamond rank Angel of Death.]

[After you relayed that information to Jade and the others, they didn’t care about the personality flaws of the upcoming fourth train crewmate. Even Astraea could empathize, as she admitted she’ll even be more arrogant if not for what she had experienced.]

[Fortunately, all of you in the Zenith Train Crew came from high bloodline ranks, so that Late Diamond rank Angel of Death would treat you as his peers rather than lowborn weaklings.]

["Speaking of which, that guy is an Eight-Winged Angel of Death. Unlike other races, their bloodline rank is dependent on the number of wings on their back. A higher bloodline rank would mean better Death Authority quality, so that guy is considered a prodigy among them."]

["After all, unlike vampires that have the means to increase their bloodline rank, there are only two ways for Angels of Death to obtain higher bloodline ranks."]

["The first method is if they were born with it, and that means they have a higher starting point. Not every Angel of Death is lucky to be born an Eight-Winged Angel of Death, since Eight Wings is equivalent to an Arch Human or Vampire Ancestor."]

["As for the second method, it’s to train one’s Death Authority and increase its quality. Even so, that requires high comprehension and talent."]

["As for Morvane, that Late Diamond rank Eight-Winged Angel of Death, he achieved it using both methods."]