Hayakawa Kazusa is a second-year attending a prestigious private school, Seiryou Academy. The company her father runs goes bankrupt, and the family loses everything. But Kazusa has another huge problem--that they can no longer afford to pay her school fees. "I worked so hard to get into Seiryou, so there's no way I'm going to transfer to a public school! If that's the case, I'll pay for the school fees myself!" So declared Kazusa to her mother, but there's no way a pampered, naïve princess like herself could amass enough money without affecting her studies. Just when she was about to give up. "Well, I do have a solution...try asking for Miyake-senpai in class 3-A." At her best friend and classmate Ayumi's suggestion, Kazusa seeks help from the third-year Miyake, and goes to meet him. "There is one, ya know? A part-time job where you can earn quite the hefty sum while still leaving time to study, just for the girls of Seiryou." "I'll do it! So please tell me more about that job!" At her wits' end, Kazusa, in the heat of the moment, requested to have the job introduced to her. When she went to find out more details, Miyake's classmate, a female student called Minakami was awaiting her. "Our group, 'Club Camellia', provides a service wherein we introduce girls to our clients." But isn't that kinda bad... isn't that what you call being an escort? It does feel rather dangerous, but you can't make an omelet without breaking a few eggs. Now that I've come this far, I've gotta stick it out! "Understood. I'll become a member." Though Kazusa was determined to do it for the sake of paying for her school fees, there was one thing that bothered her. "Now that I think about it, I, well... haven't done it with a guy before, is that alright?" "......" "......" "......" An awkward silence ensued. The one who broke it was Minakami. "Then, how about this. During the three days before your first job, you'll take some special lessons." "Lessons?" "You have to gain that experience within three days. ...Amongst those three guys, choose one of them to be your partner, alright?" Those three men were also students in the same class 3-A as Minakami, and associates of 'Club Camellia': Miyake, Narusawa and Shindou. Amongst those three who seem to have a quirk or two, Kazusa has to choose one of them to be her partner. "I, I understand. I have no choice but to rely on this place, so... I'll be in your care!" Everything is for the sake of a happy school life. And now, the three-day lessons begin. [Translated from the official website]