One day, Mao suddenly gets dumped, saying, "I found someone I like, so let's break up.'' Having lost her love, her home, and her job, Mao ends up working as a live-in at a lovely love hotel that looks like a castle. Adachi, the prince/owner of the love hotel, is a good-looking guy, but he's definitely a zero-tolerance guy! He rains down a storm of harsh judgments on everything Mao does. Mao still doesn't give up, and Adachi shows a surprising side to her... She can't help but melt away at the sadistic man's sudden sweetness!? 「好きな人ができたから別れよう」とある日突然フラれてしまった真央。 恋も家も職も失った真央はお城のような外観の素敵なラブホテルで住込みで働くことに。 そんなラブホテルの王子＝オーナーの安達はイケメンだけど絶対零度男！ 真央のやることなすことにめちゃくちゃ厳しいダメ出しを嵐のように浴びせてくる。 それでもへこたれない真央に、安達も意外な一面を見せてきて…。 ドS男の不意に見せる甘さについつい溶かされちゃう!? 天然ピュアガール×絶対零度イケメン、愛のお城で繰り広げられるちょっとHなラブコメディ！