At least I want to dedicate my virginity to you. Arisa Saotome, a boxed girl, was pondering Kage, the eldest son of the Fujiki family, who has served the Saotome family for generations. I used to play with Kage as if I were a family member when I was little, but as I got older, I got more and more distant, and Arisa felt lonely in that relationship. And Kage did his job as a butler apprentice and spent his daily life so quietly that he was called "Cool Butler" by the people around him. While keeping in mind the feelings for Kage, Arisa decides to find a job by herself in order to keep a distance from her overprotective father. Meanwhile, my father had an affair with Tatsuya, the son of the president of Makimura Shoji, who I knew. Arisa wants to be tied to Kage, and wants Kage to teach her about the night ...!?