Hayate The Combat Butler, Vol. 20

A hilarious tale of butlers, love and battles!
Since the tender age of nine, Hayate Ayasaki has busted his behind at various part-time jobs to support his degenerate gambler parents. And how do they repay their son’s selfless generosity? By selling his organs to the yakuza to cover their debts! But fate throws Hayate a bone…sort of. Now the butler of a wealthy young lady, Hayate can finally pay back his debts, and it’ll only take him 40 years to do it.
Wataru and Saki have flown to Vegas on a Golden Week vacation that they can’t afford, with the deeply questionable plan of winning the money for a ticket back home. Instead, Saki finds herself playing the Strip’s most ruthless card shark—Wataru’s reprobate mother—with Wataru as collateral. There’s plenty of fear and loathing in Las Vegas tonight, but at least things are going better for Hayate and Nagi, sunning with their friends on the Greek isles. That is, until they stumble into an honest-to-goodness labyrinth...