I honestly agree with you, I think you're on the right track here. I'm not sure what they're gonna do without him, let alone will all that money that he supposedly has.
Also they're not brothers.
I feel sad sometimes because I can't find any significance of every scene to the main plot hmmmmm, everything is like floating freely.
Aw, I feel that. I think those last scene with the Butler sitting down with Big Master are are the start rising action, though.
This story is set into different parts, so I think part one is really just introduction to their lives and how they live and part two is where the main plot occurs.
Way too long for the introduction part *sigh* but I guess I can't complain bcs that's up to the writer the raws actually has been up to chap 47 but don't feel like reading it yet. Guess it'll take longer until we realize "oh, that was the main plot, didn't realize xkzmzmzkz". Here for the art tho xD
It's unusual to have millionaire(or billionaire perhaps..?) As your butler. The grandpa must owe the big master big time in the past.
And I (didn't see the raws) think that the grandpa will die in anytime soon in the next chapters. And the vampire brothers will have something to do with his inheritance (?)
But still cannot grasp where this manhwa is going ...