Tenkuu no Hanayome Erabi

The hero is summoned to the extravagant mansion of the absurdly wealthy millionaire, Ludman, where he meets three beautiful bachelorettes. The master abruptly declares, 'Over three days, you may spend all the time you desire with these ladies. Should one catch your interest, it's best to choose her as your bride.' But to continue his quest, the hero needs the 'Heavenly Shield,' which he can only obtain by engaging in this bridal game and marrying one of them! Thus, he faces the most critical, grueling decision of his life. With three days allotted, you—the nameable protagonist—must decide whom to cherish and who will be your final choice.