Just when Sunako and the four hottest guys in Japan had finally gotten used to living together, their landlady springs a shocking surprise: she's going to remodel the mansion and they'll be temporarily relocated to a luxury hotel. Now Sunako and the guys are living it up in a gorgeous five-star pleasure palace - exactly the type of place Sunako can't stand.

The Nakahara mansion is under construction, and the entire gang is being put up at a fancy five-star hotel. Except, of course, for Sunako and Kyohei, who just can't handle living in the lap of luxury. They opt instead for a tiny apartment, but they can barely afford the rent. Sunako has no choice but to get a job, and the only jobs that pay well happen to be in the nearby red-light district.

Sunako's auntie, the landlady, lost her one true love years ago, but is death really forever? When the landlady visits the mansion, Ranmaru, the notorious playboy, begins to act strange. In fact, he's behaving just like the landlady's deceased husband. There's only one explanation: Ranmaru's been possessed by the ghost of the landlady's long-ago love. Now the landlady is ready to spend some quality time with her mate. But wait - he's still Ranmaru on the outside. Kyaaaaaa!

When the guys stumble upon the mansion's secret sub-basement, they discover the ghost of a prim and proper lady who (thankfully) begins to possess Sunako's soul. It seems their problem is solved... Too bad that Sunako's now-suitable personality includes a desire to lock the boys up in the mansion's dungeon!

Sunako is a great cook, but her croissant recipe needs help. Luckily, the landlady happens to know a royal family famous for its master bakers. Sunako and the gang are whisked off to the small kingdom of Grimmel, but the landlady has ulterior motives: the young prince of Grimmel is looking for a bride, and his tastes are almost as morbid as Sunako's.

A rumor is spreading that Kyohei and Sunako are an item, and many jealous women are out for blood. Kyohei is oblivious until his friends convince him to protect Sunako. But what if Kyohei's chivalry only makes life even more miserable for her?

Sunako scores high in all subjects - except math, which she consistently fails miserably. Now the guys have to tutor their reluctant student through hours of course work, avoiding the pitfalls of her gruesome hobbies, explosive nosebleeds, and tendency to faint whenever anybody refers to her kiss with Kyohei. Math would be easier without so much division!

If the aunt finds out that Sunako is still clinging to the darkness, their rent is sure to skyrocket. It looks like the only way out is to convince the meddling relative that Sunako already has a boyfriend. But which of the four guys could possibly pull off such a demanding role?

Sunako Nakahara and her four handsome housemates are enjoying their glamorous lifestyle at her aunt's mansion – until Sunako's father makes a surprise appearance. After learning that Sunako is going out with Kyohei, he flies all the way from Africa to investigate whether Kyohei is worthy of his precious daughter!

How did four of Japan's hottest guys end up living in the same magnificent mansion? The shocking revelations continue! And whatever happened to the idea of giving Sunako a major makeover? If the foursome wants to remain in their luxurious surroundings, they need to follow through on the original agreement. Sunako's aunt will no doubt threaten to kick them out (again!) if they fail to transform Sunako from a dark loner into a beautiful young lady.