Yoshitaka is the 14-year-old boy who inherits his parents' fortune. He is described by others (and an episode title) as "the boy in the midst of puberty who inherited his parents' fortune and was living all by himself with no supervision and has surrounded himself with tender young girls in a huge mansion, thus living out his fantasies and creating his own world of desire as he makes them serve him". He installed scores of hidden video cameras throughout his mansion, and can efficiently record or snapshot instances and events he finds pleasing. His media archive is routinely browsed by Mitsuki each night from the comfort of the sisters' bedroom computer.  Yoshitaka is never addressed by his family name except by some of his classmates; he is addressed either as "Yoshitaka" (with and without honorifics) or "Goshujin-sama" (meaning 'master' in Japanese) throughout the story. Izumi hates him and often refers to him as an "inhumane pervert with a Lolicon fetish". He even has a closet full of extra (suggestive) clothes for the girls (i.e.: sailor suits and bunny costumes). Yoshitaka made them all by himself, as he is said to be a natural genius, when it comes to sewing outfits, however Izumi states he would waste his unique talent on his fetishes. He would never waste a single millimeter, making an outfit's skirt longer than it needs to be to cover the most important parts.   (Wikipedia.org) [Edited by Tiamat]

Izumi Sawatari and her younger sister, Mitsuki Sawatari, have run away from home and are in need of employment. The only jobs available are as maids in the mansion of 14-year-old millionaire, Yoshitaka Nakabayashi. What seems like simple work is soon revealed to be far more than the girls bargained for when they find Yoshitaka to be an authoritative employer who demands they call him "Master". 
(Source: Sentai Filmworks)


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**Birth Place:** Berlin
**Height:** 1.68m

Yoshitaka Nakabayashi, a 14-year-old millionaire who got this huge inheritance after his parents died in an accident, found himself needed to be taken care of and tried to hire live-in maids to do the job. Two runaway girls, Izumi Sawatari and her younger sister Mitsuki, stumped into Nakabayashi's mansion and got hired by Yoshitaka immediately, for Yoshitaka is not only a rich boy but also a pervert with uniform fetishes, who wants to be addressed as goshujin-sama (master). Having nowhere else to settle down along with Mitsuki's pet alligator Pochi, Izumi accepted the job reluctantly.
 
(Source: Anime News Network)

This one is a spinoff from Kore ga Watashi no Goshujin sama. The story is about a school, Shiritsu Yurihime Gakuen, an all girl school specialized in preparing maid for the otaku moe industry. Of course, the leader is no less, a Nakabayashi, a heavy-class otaku with unlimited asset to burn for while seven generations. 
Our main heroine this time is Mochida Natsumi, a girl with hentai mind as worse as Yoshitaka and luck as bad as Izumi. She came with the ambition of building harem of imouto. But life is not as beautiful as in those harem love comedy genre anime/manga, because in this school, all the girls are well educated in otaku business. 
Her couple is Kitamura Kiriko, a.k.a Mitsuki 2. Cute, innocent (looks) and demonic personality to the bone and teeth. She's also Natsumi's roommate, imouto, as well as goshujin sama. 
(Source: Suiheisen)