The white haired guy is
[Spoiler]
King/crown prince depending on the translation of a neighboring country
That isis is "gonna" marry
But actually he's on asher's side and will help him get rid of isis and mielle and the rest of the rotten nobels in the aristocratic party.
Asher was more of a stalker in the novel
He sneaked into her room and left tulips every night
And in that scene she was asleep and felt something warm touching her neck so when she opened her eyes she found him infront of her
In the novel she started with 100 gold coins worth of chips
She only bet when noone else won
At first she gained 100*10
The next day she gained 1000*10
And since she can only bet 1000 coins max she did it for few extra days
She probably won 50 000 coins in total
In the novel it went like this:
Aria, who was sitting on her bed for a while, escaped from her room. In the dark dawn in which no one moved, her destination was the guest room on the second floor. When she opened the door of the sixth room, she found what she wanted. "... Who?!" Oscar, who was...
Guys don't worry about the hourglass falling in mielle's hand.
In the novel Aria made jessie turn the glass but nothing happened.
So in conclusion only Aria can use the hourglass
[spoiler]
Before anything sorry English isn't my native language.
Aria will meet veri in the place she's hiding , after beating the sh*t out of her she gives her a golden coin to prepare herself to come to the dukes mansion and tell the truth behind the poison incident .
The next day veri goes...
[spoiler]
So basically what will happen in ch 53/54
Aria will make a deal with veri
Veri will tell them that Emma threatened her to poison Aria if Aria grant her freedom
Emma will face execution
Aria will betray veri and kill her