The employee of a certain chief character "Kaito Ichijo" (ichijokaito) dove company. Enter the company, and one year passes, and it is about time when finally made you to an adult. One day younger student "number of the lawn storehouses Makoto" (Kazuma Sakura) which got drunk by a drinking session, Send it to the house as a senior. Achieve a reencounter with the woman "Ayami" of the childhood friend whom I have ever had a crush on in the house of the younger student. It comes to be invited to the house of the younger student in an opportunity, The chief character who increases complicated thought in the Ayami which became the wife of the younger student now. One day when such a thing often continued, Expose the figure that the Ayami which I got drunk on is defenseless…….