Raizo Fuwa a 25-year-old man is the main character in this manga. He is certainly a reckless and irresponsible person. He lives in a very cramped apartment. He works in a small office which later will change into a home office, because the building that was supposed to be used as an office is condemned as unsafe because the construction company has been cutting the expenses for making it. His life started to change from this point, he had to give up his own room in apartment to be used as a temporary office and then he had to live together with Hiyama Izumi a 15-year-old girl that his company hired. He thinks like he was in some kind of hell to live with a girl 10 years younger, he must able to control his every desire as an adult. There were times that he couldn't control his desire anymore, but luckily there were always breaks that stopped him from doing anything to Izumi. He has a dream that he can have his own house, but he knows that such things were only a mere dream, but his passions never run out. With the help of Izumi he lived his life the to fullest.