One Pair Lady 

Adel never intended to make her living at the card tables of casinos, but as an orphan with few other talents, her gift for gambling was too valuable to pass up. But one day, when she stumbles upon a young boy in danger, she sees an opportunity to finally pay forward the help she received as a child. She promises Ed that she will look after him - until she is suddenly sent 10 years into the future! Now, unable to return, she must follow any clues she can find to lead her back to the boy she swore to protect. But when her path leads her to a decadent casino cruise run by a wealthy and mysterious young nobleman, Adel begins to uncover more questions than answers... (Source: Tappytoon)