Vincent was tempted after hearing about all these benefits.
Of course, he could probably obtain the material benefits he mentioned even if he decided to not accept the offer but it would take some time.
Furthermore, he really wanted to inspect these books as he may be able to learn another incredible Mana Art from them.
It must be remembered that his Mana Drain was learned in a skill book that no one was able to understand. That skill has been very useful to this day and getting access to the library might give him a surprise. Perhaps, he could learn another mysterious Tier 1, or hopefully, Tier 2 Mana Arts!
'There's also a matter about the factions within the Black Tower. I guess being connected with the Tower Lord is the best option for me.' Vincent thought as he weighed his options.
"May I ask what you're expecting me to do once I become your disciple?"